Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to take care of your ipod [title] Make sure you keep your battery charged, and try not to let it run out completely if you can avoid it. [step] Occasionally, let the battery completely run dry, and charge it up again. [title] Try to buy or make an ipod cover.

Ending1: [step] You can get an ipod cover from a store or have a friend do the cover for you. The cover is translucent and can take ink out easily. Ending2: [step] They can be bought cheaply, and they can save your ipod casing, especially if you don't store it that well. [title] If you don't have or you don't like a cover, make sure to not wrap the cord of your earphones around your device, it will affect your headphones performance. Ending3: [step] It is not recommended that you buy one, but if one comes available, put your ipod into the cover with text in it. Invest in an ipod cover from the music store, or go to look for cheaper ones. Ending4: [step] Make sure it has a special crown and/or padding. You can find these at hardware stores or online.

Answer format: ending1/ending2/ending3/ending4