Go on Saturday mornings. Get there about an hour before the storefront opens to be early in line! There will be a line. Have a mango smoothie from the small Thai restaurant nearby while you wait. Be prepared to do this for a few weekends since the selection is hit and miss. Also, check out the warehouse about 2 blocks north by the auto shop. That is where they keep everything that hasn't been worked on yet.

Working Bikes is a great place if you enjoy scrounging. Denver doesn't have a place like it that I'm aware of. I miss it.