If you wear contact lenses, you might be able to save some money by buying them on-line, rather than directly from your eye doctor. If you're interested, simply:

1. Go to: http://www.1800contacts.com
2. Find your brand
3. Enter your prescription information (which can be found on the box your contacts come in, if you're looking for a refill; or you can call your eye doctor and ask if they didn't write it down for you).
4. If you like the price, select the number of boxes you'd like, and enter your shipping and payment information.
5. They'll need to confirm your prescription. This can be done by uploading of faxing your prescription slip (if you were given one), or by simply entering your doctor's name, and they'll give them a call for you.
6. Confirm your purchase, and you're all set!

No, I'm not affiliated with their site in any way. I just got tired of all the markup my doctor's office was charging!