Best way to clean a keyboard ?

[shootersam]

I use a hoover, compressed air and a paint brush. I like my things to be very clean, I am a perfectionist.

 

[moorlander]

Hoover it whilst it is upside down - then a damp cloth for the surface of the keys - then drag the cloth down the sides of the keys using a "blunt" knife.
Worked a treat on my lads keyboard - I think he was trying to grow carrots in it