Shady $5 shoe sale

Jake and I went to find some garage sales this morning in hopes of getting Cameron some clothes for the summer. We weren't finding too much as it is pretty early in the garage sale world. We did see a sign that said "$5 shoe sale." It caught our eye. So, we went to some odd building on a pretty desolated street. I made Jake go in by himself first. It was a room full of hundreds of shoes all for $5. I have never seen anything like it. I got 1 pair of dress shoes but there was nothing for Jake or Cameron. The guy told me that he gets 400 pair in every weekend so I should come back. Where do they come from???