I'm coming late to this 3-year old thread and have to admit, I haven't read all 8 pages. But the first thing which came to my mind when reading the title was, obviously, "Buy a new camera"
, certainly as an ironic response to the overflow of manufacturers trying they best to convince us that a new camera will improve our photographic skills.
I can think of one case, though, when buying a new camera improved my skills: moving from an expensive Nikon SLR with half a dozen of lenses to a simple, $100, Yashica Mat TLR. With 12 exposures per roll I indeed had to refrain making those 10,000 exposures and that single (hmmm, actually dual) lens taught me to zoom with my feet.