Ctrl+ Shift+T (Windows) or Command+ Shift+T (Mac). This will open the last tab that you closed. You can keep pressing this to continue opening closed tabs in order. You can right-click on an open tab and select "Reopen last closed tab" to accomplish the same thing. This will display a list of all of your recently-closed tabs. Click on any of the tabs in the list to open it in a new tab.

Summary: Press . Click the Opera menu and select "Recent Tabs".

Part of being creative is gaining expertise in one area or medium and learning as much as you can about it. Begin by reading articles and watching videos on the subject to gather more information about it. If possible, sign up for an introductory course at a local college or community centre (e.g. a beginner painting class). Inspire yourself by experiencing the creative works of others in a medium that interests you. For instance, if you are learning how to paint, visit a museum or art gallery. The most creative people are willing to engage with multiple ideas, broaden their horizons, and be surprised. Avoid resisting and dismissing things that are unfamiliar to you, and accept opportunities to try new creative endeavors. For instance, attempt a medium like clay sculpting even if you believe that you will dislike it or be bad at it. Being more childlike can help your creative side by freeing you from adult hang ups for a while and opening your mind. Use toys and art supplies to stimulate your imagination and make new connections. If you're short on creative ideas, take the time to draw a whimsical picture or play with building blocks or legos. They say that you remember 90% of what you learned by teaching it to someone else. Explaining your newfound knowledge to yourself and others can help to cement it in your own mind. While you are learning something new, make a point of explaining it to yourself in your head. Picture yourself giving a TED talk or tutoring someone on the topic. If you feel particularly confident, make a video about the topic to post online, or explain your knowledge to a friend or colleague. Engage in activities that actively force you to think of new ideas. For instance, play word association games by writing down one word and then any words that connect to it. Use analogy to find similarities between two seemingly dissimilar things to break down and examine your associations with each. For instance, look for similarities between a textbook and an iPod. If you feel stuck, try some word association games or search for synonyms online. Creativity takes practice, so set aside time each day to retreat to a quiet or inspiring place to generate new ideas. For instance, visit a quiet park or sit in a library and let your mind flow freely. Write all of your ideas (good or bad) in a notebook, on a whiteboard, or on your computer without stopping to edit or rethink them. Find a time that will work for you regularly. If you always have time after dinner, for example, take an hour after dinnertime to turn off distractions and engage with new ideas.

Summary: Develop your expertise. Be open to new experiences. Use play to foster creativity. Share and explain your knowledge. Prompt yourself to think of new ideas. Set aside time for brainstorming.

A quarantine tank is important as it keeps a fish away from the rest of your aquarium. It is highly reccomended you use a quarantine tank before acclimating your fish to your main aquarium. If a fish you just bought is sick, you do not want the infection to spread to the rest of your tank. After buying a new fish, purchase another tank to use as a quarantine tank. You do not need to get a fancy tank. A simple 10 to 20 gallon tank should be big enough for a quarantine tank. You can purchase an aquarium at a pet store. You can also order one online. As with a regular aquarium, your quarantine tank should have some kind of filtration system. This will keep your fish safe and healthy during the quarantine period. If possible, go for a tank with a built in filtration system. If your tank does not have a built in system, purchase a filtration system at a local pet shop. Install it in the tank when you get home, following manufacturer's instructions. This will keep the water at a safe temperature for your fish. You should also get a thermometer to record the temperature. You want to make sure the temperature is safe before transferring your fish to the quarantine tank. An aquarium may have a built in heating system. If yours does not, you can buy one at a pet store. The proper temperature depends on the type of fish you have. Ask at the pet store what a safe temperature for your fish would be. The quarantine tank should be similar to your regular tank. Once your fish is ready to be transferred to the regular tank, you want the transition to be as smooth as possible. Take water from your main tank, using a bucket or cup, and fill up your quarantine tank. Once the quarantine tank is full, you can turn on the heater and filtration system. Watch your fish closely during this time. Before introducing a fish to a tank of other aquatic life, you want to make sure it does not have any diseases. Diseases can spread fast in a fish tank. Common infections include things like fin rot, vibriosis, and mouth rot. Usually, you would treat infections with antibiotics. Antibiotics may be administered to a fish's tank, or you may give your fish food with antibiotics. Symptoms of infections changes in color, frayed or rotting fins, a lack of appetite, gray marks on the scale and fins, and open sores on a fish. If your fish has an infection, make sure it is treated and symptoms are gone before transferring your fish to the main aquarium. If two to three weeks pass without incident, you can transfer your fish to the regular tank. You would repeat the same floating process you used to acclimate your fish to the quarantine tank. You will have to net your fish and place it in a bag filled with water from the quarantine tank. Make sure to seal the bag with a metal clip or rubber band. Float the bag in the regular tank for 15 minutes, cut the bag open, and roll down the edges an inch. Transfer half a cup of water to the bag every 4 minutes until it's full. Discard half the water in the bag, and float it in the tank again. Once again, transfer water every 4 minutes until the bag is full. Net the fish and transfer it into the main tank.
Summary: Get your tank. Install a filtration system. Add a heater. Fill the aquarium with water from your main tank. Monitor your fish for 2 to 3 weeks in the quarantine tank. Repeat the floating process to transfer the fish to the regular tank.