Almost all my keyboards are white due to them being vintage, and they attract dirt and dust, especially between the keys. While I have a special plastic cleaner that is alcohol-free and easy to use on most surfaces with a microfiber wipe, I have problem with between the keys
Should I order some specialty kit, or just get some brush from some local hardware store? Makeup brushes don't work very well for this purpose in my experience.
Personally I've got a datavac that I use for blowing the dust and fur out of my desktop, and end up using it to blow any dust and dirt that lands between the keys. Of course if you've got some crusty build up that's sat there for long then...you'll probably need to remove the caps, maybe take apart and use some 99% isopropyl alcohol and paper towels or something to really clean it up.