1800contacts is giving away some free Opti-Free PureMoist drops. All you have to do is fill out the address form and you'll get the freebie sent straight to your home. They'll also send you some sales emails, but you can ignore them and still get the freebie in 6-8 weeks.
These are drops for use with all silicone hydrogel and other soft contact lenses. They help prevent deposit build-up and they remove particles that cause irritation.