I use the EM-30L for everything. That stuff works for things that no other lubricant I've found works for!
And it's not messy! I can just dab a little bit on to the thing I'm lubricating, spread it around a bit, and I'm done.
Way back, I had a couple Apple USB keyboards (I think the ice cube tray and the one immediately before it), and after I cleaned them, the keys were insanely sticky, so not knowing better, I used a bunch of 2-cycle motor oil, which worked wonderfully until it leached into the membrane and ruined it. Oops....
Had I known about the EM-30L back then, I'm 99.9% sure that wouldn't have happened. But I wasn't so smart about such things back then (or, perhaps more accurately, I wasn't as careful).
c