Q: Lemon is a classic natural lightening agent for hair. While it's natural, it can still dry out your hair so it's important to dilute it. Combine 1 part lemon juice with 1 part water to reduce its acidity, and pour it into a spray bottle. For the best results, use fresh, organic lemon juice. Bottled juice can work but make sure that it's 100% real juice. Alternatively, you can buy your own lemons, cut them in half, and squeeze out the juice. Lemon juice is acidic and will dry out your hair. If your hair is already extremely dry, you can substitute coconut oil or conditioner for the water to minimize damage. You can also dilute the lemon juice with more water if you're concerned about damage. After you've mixed up the lemon juice solution, decide where you'd like to lighten your hair whether all over, just the tips, or in highlights. Then, spritz the solution in those areas. Comb your hair with your fingers or a wide-toothed comb to ensure that the solution is evenly distributed. Once your hair is coated with the lemon juice solution, you'll want to sit out in the sun. The heat will help the citric acid in the lemons lighten your hair, so remain outside until your hair is almost completely air dried. To avoid damage, don't sit outside in the sun for more than an hour and a half. If you're concerned about damaging your hair, you can also apply the lemon mixture to your hair at the start of your shower as a rinse. When your shower is over, wash it from your hair and follow up with conditioner. Repeat the process regularly to gradually lighten your hair. When your hair has mostly dried, take a shower and rinse the lemon juice out with your usual shampoo. Condition the hair to ensure that it's properly hydrated, and allow it to air dry. For more intense lightening, you can leave the lemon juice solution in your hair overnight and wash it out in the morning. If your hair needs a more intense conditioning treatment, try sitting under a heated dryer with conditioner on your hair, under a plastic cap.
A: Mix equal amounts of lemon juice and water. Spray the mixture on your hair. Air dry your hair in the sun. Wash the lemon juice out of your hair and condition it.

Q: When the dahlia first starts growing, it will develop 4 sets of leaves. Pinching off the top of the plant above the fourth set of leaves will encourage branching, resulting in a fuller plant and therefore more flowers. At this point in their growing cycle, the dahlias are sprouting rapidly, so they'll recover quickly. You can continue to remove new growth throughout the growing season to encourage even more flower production. New growth is easy to remove with just your forefinger and thumb, although you can use a sharp tool if you prefer. More flowers take up more of the dahlia's energy, resulting in smaller flowers. To get the biggest dahlia blooms, restrict the number of flowers on each plant, so the energy can be directed towards growing just a few large flowers. If you prefer to have more flowers and you aren't as worried about size, just focus on cutting back new growth occasionally. As the dahlia branches out, you may see as many as 10 flowers on a single plant. The practice of removing faded flowers, also called deadheading, encourages more blooms. You may even see your dahlia bloom all the way through the fall if you remove faded flowers through the season. Since dahlias have tough, stringy stems, it's easiest to remove the flowers with sharp scissors, pruning shears, or a knife. Cut back the flower stem to where it meets a main stem. When all the petals have completely fallen off the flower, it can be hard to tell the difference between a new flower bud and the closed calyx left behind from the flower, also known as the dead head. However, the dead head is cone-shaped, whereas a bud is rounded. While removing dead heads will encourage new buds to begin blooming, removing the buds will delay flower development.
A: Pinch the tips off of dahlias once they reach 16in (41cm). Limit each plant to 3 to 5 flowering stems if you want giant blooms. Allow up to 10 flower stems if you don't mind smaller blooms. Cut off flowers with scissors once they have started to fade. Do not remove rounded buds when you're deadheading.

Q: If the cord feels unusually hot to the touch, stop using it and check that the appliances plugged into it do not draw a higher amperage than what the cord is rated to handle. Consider a heavy-duty extension cord meant specifically for large appliances where applicable. Replace or repair loose or frayed cords. Consider having additional circuits or outlets added by a qualified electrician so you do not have to use extension cords. These will shut down if overloaded.
A: Do not overload extension cords. Regularly check your extension cords to make sure the plastic is not worn away or coming apart at the ends. Avoid using an extension cord as permanent wiring. Instead of a simple extension cord, get a laboratory-tested extension cord with built-in circuit breakers. Avoid running extension cords across doorways or under carpets.

Q: If you are replacing your hard drive, you will be reinstalling OS X. Since your files are stored on the hard drive you are removing, you will need to back up any files you want to transfer to the new drive. This will make the operating system reinstall as painless as possible. See this guide for detailed instructions on backing up your files. Remove the power adapter cable. You must power down the Mac before opening the panel, or you run the risk of shorting out your components. Note: You cannot remove the hard drive from any MacBook Pro with the Retina Display, as these use integrated flash memory as opposed to traditional hard drives. You will be accessing the back panel of the MacBook. Set it on a table or workbench that gives you easy access without having to bend over. These run along the edges of the bottom panel. The exact location of these screws varies by model, but there are always ten. You will need a Phillips screwdriver to remove them. There are usually two types of screws: Seven 3 mm Phillips Three 13.5 mm Phillips The 13" MacBook Pro may have slightly different screw configurations, but there will still be ten screws. Wedge your fingers into the gap between the vent and the lowercase and pry the panel up. You will release two clips securing the panel as you do so. This connector provides power to the logic board, and should be disconnected before continuing to prevent shorting out any components. It is black and located along the edge of the logic board, and is the largest connector attached. Make sure to pull the connector straight out so as not to damage the connection. If there is a tab connected to the battery connector, use it to pull it out of the socket. If there is no tab connected, you can use a spudger or cocktail pick to push the connector out.
A:
Back up your files. Power down the MacBook. Flip the MacBook over on a work surface. Remove the ten screws securing the back panel. Lift the lower panel. Disconnect the battery connector.