It is always a great idea to shake out your computer keyboard every once in a while.. especially if your kids play on the computer too. You will be amazed about how much dust and other unexpected things fall out of the keyboard when shaken lightly. Then just take a baby where to wipe down the keys and in between the keys - just make sure that the computer is off first of course. Vinegar also works well. Just wet a paper towel with a little water and vinegar to clean up. You can even dip a Q-Tip in the solution to clean in between the keys. Just be sure to squeeze it because you don’t want to get any liquid in there.