spex has yelled at me about this before, but I only buy glasses online now. When you can get a set of glasses online for $20 instead of $300 in person, it's worth experimenting with it. I've never had progressive lenses, but
this website sells them starting at $35. Yes, one tenth what her doctor quoted her.
I've never purchased from that particular retailer, but I have purchased from Eyebuydirect.com and have been very pleased.