If not cleaned on a regular basis, computer keyboards can build up copious amount of bacteria and dirt. If you think about it, that’s bad news; we use our keyboards every day and handle them plenty.
There’s even more bad news as well. Keyboards are difficult to clean thoroughly and some require you to take out individual keys so you can remove trapped dirt.
Well, we have good news for you. There is indeed a great shortcut you can use in order to clean your keyboard thoroughly and quickly. The first step is to find a squeeze-ketchup bottle (much like the ones you would find at a burger van). Remove the bottle top and attach it to the end of your vacuum nozzle. The second step is to use the nozzle to clean in-between keys without removing them. The spout should be small enough to reach between the gaps!
Happy cleaning.
Source – Life Pro Tips