I have two different sized camera bags that I thought I'd share if you're interested in thrifty DIY solutions. The small one is a camcorder bag, $7 thrift store find. I have a picture.

The second one is a photographer's bag about twice the size - belonged to my grandpa. I use the small one for grocery errands; the big one works for my commute to work with a change of clothes, toiletries, and roadside tools.