If you have a Costco near you with an optical department, check out what kinds of deals they have. I saved a TON on my daily wear contacts when I bought them there. It was way cheaper than what my eye doctor was charging for the same thing. You do have to buy in bulk, though. For the ones I use it was a minimum of six boxes of 30 contacts per order, which worked out to about $105 for 90 pairs.
On a related note, does anyone know if it is really horrible for your eyes if you stretch the dailies out to changing them every two days indead of every day. You'd think that over a single day, you wouldn't have enough gunk build up on them to really hurt you (especially since they'll be sitting in cleaning solution all night). I know my eye doctor would tell me not to do it, but she is in the business of selling contacts so I just don't consider her unbiased. It;d save me some money if I couold stretch out the dailies a bit, but I don't want to mess up my eyes to save a buck.