[jcwade]

I second, or third, Costco.
You can get good cheap frames there and the lenses are not too expensive if you don't need all the bells and whistles.
Or, you can bring your own frames for a $25 charge, they now make you sign a waiver that if they break them, they will replace them with a set of frames that they sell.

I brought in a pair of designer frames that cost around $500 and they broke them. I got them to replace them with similar priced pair based on what their salesperson had told me over the phone.
They were not happy but they did it.
I was probably partly responsible for the waiver as I had to sign one the next time in.