Have you looked between the keys lately?
Ewweewweee! All the tiny crumbs and dust in there! This can make your keys stick or not take and slow down your typing. Well you can’t launder the keyboard – what works well without damage that is quick and easy?
Just pick up one of those sticky notes, fold the sticky portion in half and slide it between the rows of keys horizontally and on the diagonal to clean up all those crumbs etc. Sticky notes have many helpful uses as reminders, but this one will help protect your computer keyboard and keep your fingers humming along.