Eyelash Extensions

I know a few of you here have done it. Any reviews? Maintenance & care etc...
How long does it take before they start falling out?
I'm worried I can't wear my glasses cuz the lashes are too long haha!

Any good (and cheap) places to recommend?

Which is your fave eye cream / gel / serum for dark circles & fine lines?
I've heard good things about Cosme De Corte & Shiseido's?

I need a new one! :)