Try not to wear them for longer than 7 hours at a time.
Never, ever sleep with them in.
Try not to wear them daily.
When not in use, keep them sealed tight in their cases with ample lens solution to soak in.
If you haven't worn them for a week or so, it's best to change out the solution it's been soaking in.
*Important!* When you first open your lenses, do not immediately put them into your eyes! Soak them overnight or for at least 6 or 7 hours.
If you feel irritation or pain for longer than a few minutes (a little bit of irritation is normal when you first put them in), remove them IMMEDIATELY. This means the lenses just aren't right for you.
How to Open the Vial
If you accidentally pop the top without removing the metal part, the best thing to do is to take something like a butter knife or kitchen scissors and manually cut/pry it open.