Where do you buy your blinds?

[Konrad R.]

I'm trying to buy cheap 1" mini blinds, but I can't seem to find ones in a 36 inch length. I would think it is a pretty common size, as the big box stores sell replacement windows in those sizes.

What are my options? I didn't want to go with wood blinds or even faux wood because I think they will be destroyed. Does anyone have an online source they purchase from?