Focus Dailies Contact Lenses

How do you take off focus dailies contact lenses?
I used to wear a pair of 'monthly' Bausche and Laumbe contacts. To take them off, I would look up, slide the contact 'down'. It would get big air bubbles underneath it, and I could 'pinch' it to remove it.I tried the same process with my new contacts, a pair of focus dailies. But man these things stick like crazy... when pulling them down they were being filled with 'air bubbles', and I was afraid I'd push them under my eye.Is there a trick to this I don't know? I wonder if my eyes were too dry, and that was what caused this?

Can I sleep with my focus dailies contacts lenses in?
I know they're meant for new ones each day, I have slept with them in before and nothing happened but I'm wondering if anyone else does has and do you think it's okay?

Focus Dailies contact lenses are expensive. Can I wear them 2-3 days instead of 1, taking them out each night?
I'm trying out new contact lenses I have a dry eye problem , and the Focus Dailies are wonderful. However, they're very expensive Does anyone wear them longer than just one day? What if I wore them for 2 3 days, taking them out every night and storing them in lens solution just as you would other types of lenses? Does anyone out there do this?

Can I wear Focus Dailies contact lenses after they expired?
My Focus Dailies expired at April 2008, can I still wear them?