INPUT ARTICLE: Article: Floss once or twice a day, just before you brush your teeth. This removes plaque from between your teeth, preventing a build up of yellow or off-white plaque. If you have braces, ask your orthodontist for "threaders: you can use to floss in between the wires. For clean, healthy teeth, brush twice a day for at least two or three minutes. Use a toothpaste that contains fluoride for best results. Brush gently, especially around the gum line. Rough brushing won't make your teeth cleaner, and may even damage your gums. Whitening toothpastes are abrasive, so long-term use may damage your teeth enamel. Consider using one every other day, or only until obvious surface stains are removed. If a simple flossing and brushing regimen isn't enough to whiten your teeth, you may want to try a whitening treatment. These home remedies are a good first step, since they are much cheaper than drugstore options. Add a small amount of baking soda to your toothpaste and brush for two minutes. Do this only once a week, since overuse can damage your teeth. Swish a small spoonful of coconut oil in your mouth for a few minutes, then spit it into the trash. Dentists are divided on whether this "oil pulling" works, but it shouldn't cause any harm and has plenty of fans. Do not use home remedies involving strawberries, vinegar, or other acidic foods. While these can remove some stains, they can rapidly eat into your tooth enamel. All of the following can be very painful for people with cavities or sensitive gums, or anyone who overuses them. That said, they can be very effective at hiding stains on teeth. Here are a few options: Dental whitening strips: Available at drugstores, these can help with surface and deeper stains, but may have limited effect on darker stains. They may cause temporary tooth sensitivity. Dental whitening trays: These use a more powerful whitening gel than the strips. For best results, ask your dentist for a tray custom-fit to your teeth. Dental whitening procedure: Your dentist can provide ultra-strong whitening, and protect your gums while she does so. This is usually not paid for by insurance. Coffee, black tea, and wine can all stain your teeth. Try drinking these through a straw or reducing the amount you take. Smoking can also stain your teeth, so consider quitting the habit or switching to an e cigarette or vaporizer. These don't cause staining due to a lack of smoke, but their long term effects are unknown. Don't forget that your smile features your lips as well. Take care of your lips using these techniques: Exfoliate your lips with a lip scrub or toothbrush. If your lips are severely cracked, do this only after a shower. Apply lip balm after exfoliating, or whenever your lips feel dry. Use a lip balm with sun protection before going outside in the morning or afternoon. Stay hydrated with water. If your lips feel dry, drink water and dry them with a cloth. Avoid licking them. In most cases, the shape of your teeth is not an obstacle to a great smile. Crooked teeth or gaps in your teeth can even look adorable. If you can't stand your teeth, however, your dentist or orthodontist has many tools to reshape them. If you do get braces, a retainer, or other treatment, ask your orthodontist how to keep them clean. A dirty retainer can sabotage your smile and breath. If you want a radical change, ask about dental veneers, implants, bridges, or dentures. These add false teeth or the appearance of teeth to your mouth to completely change your smile.

SUMMARY: Floss every day. Brush your teeth twice daily. Try home whitening treatments. Be careful with professional whitening treatments. Reduce exposure to staining substances. Keep your lips smooth. Consider having dental work done.

INPUT ARTICLE: Article: The foreign exchange market, commonly referred to as forex, is an international exchange for the trading of currencies. It allows investors (from large banks to individuals and everyone in between) to trade one national currency for another. Each trade is both a purchase and a sale, as one currency is sold in order to buy another one. This duality means that each currency is priced only in relation to another currency. In other words, a U.S. dollar has a price only in terms of British pounds, Japanese yen, Mexican pesos, or some other national currency. The forex market also facilitates the sale of financial instruments, including forwards, swaps, options, and others. These are more complicated than simple currency trades and can involve a multitude of other trading tactics. Arbitrage is the practice of buying an asset in one market and immediately selling it at a slightly better price elsewhere. In theory, a given currency should carry the same price in different markets. However, market inefficiencies (often resulting from communication difficulties) may result in different prices emerging in different locations at the same time. Arbitrage takes advantage of these inefficiencies to the benefit of the trader. For example, if a trader recognizes that a currency can be bought for less in one market and sold for more in another, he could then make those trades and keep the difference between the purchase and the sale. Forex traders take advantage of minor price differences by buying currencies where they are less valuable and selling them where they are more valuable. This usually involves multiple trades of intermediate currencies in practice. Intermediate currencies are other currencies used to express the value of the currency you are trading. You wouldn't just buy and sell U.S. dollars, for example. You might buy euros with your dollars and sell them for pounds, with which you could then buy dollars. For a more specific example, imagine that you could use 2 American dollars ($) to buy 1 British pound sterling (), then use that pound to buy 1.50 euros (), and then use the l.50 euros to buy $2.50. By trading this way you have gained $0.50, simply by exploiting price differences. In the real world, price differences would never be this extreme. In fact, they are usually fractions of a cent. Traders make money by trading in large volume. Volume trading allows traders to make enough profit to offset transaction fees. In addition, traders must overcome the fact that arbitrage opportunities may disappear only a few seconds after first appearing (as markets adjust to correct the difference in pricing). Institutional traders rely on computers and automated trading to buy and sell currencies quickly enough to stay ahead of the markets. Market prices are expressed in a very specific way. As mentioned, currencies are priced in relation to other currencies. The US dollar (USD) is often used as a base currency in determining values. For example, the value of the Japanese yen (JPY) will be expressed as a ratio of dollars to yen (USD/JPY). The relative values of currencies are generally expressed to four decimal places. For example, the euro-to-dollar rate might be expressed as 1.1156 EUR/USD. This means that at a given moment it would take 1.1156 US dollars to buy one euro.

SUMMARY: Understand the foreign exchange market. Learn about arbitrage. Know how to use arbitrage to make profitable trades. Know how to read currency prices.

INPUT ARTICLE: Article: to 350F (177C).

SUMMARY:
Grease and flour a 9 x 13-inch baking pan. Preheat oven Add shortening (or butter or margarine) to bowl. Add sugar to mixing bowl and beat well. Add milk, baking powder then flour. Mix ingredients together. Pour batter into the prepared pan. Combine cherries and sugar. Pour cherry mixture over cake batter. Pour the hot (not boiling) water over the cherries. Bake cake for 30 minutes. Serve cake with milk pour over the top of each cake serving, or with ice cream.