I’m looking into buying my contacts online, but I’m not sure how many I should purchase. On the one hand, the more I buy at a time, the less I spend, especially on shipping and handling. On the other hand, what if I don’t like the kind I get, or what if my prescription changes? Can I return contacts I’m not going to use anymore? Or, do wholesale contacts ever go bad? I wouldn’t think so, but maybe they’re like cereal; they last for a really long time, but not forever. Maybe I can start with a three month supply and go from there.  I might even get some durasoft colored contact lenses just for fun.