Sometimes I do a "shakedown". All angles and shake shake shake. It'll get things out that compressed air won't sometimes. Sometimes I had to do it on some rather large TVs which might require help, but on most scopes and other equipment of the same general size and weight it works fine.
Thanks for the reminder BTW, I have lately come to the conclusion that much of what I work on has been gotten into before and who knows how the last guy left things.
Jeff Urban