I recently bought a cheap light tent on E-Bay and have been experimenting with retaking some photos I did some time ago. I got the 36 inch by 36 inch model and sometimes I wish I had one about half that size to shoot smaller objects.
Something else I'm finding as I look through photos I took or processed some time ago is that I think I could do much better photographing or processing it today. I'm glad I always shoot in RAW because it makes it easy to process it again. If it's a still life object that I photographed, sometimes I'll just set up the shot and have a "do over", as I did with this revolver.