I also resisted wfp due to the fact I liked the simplicity of cleaning windows traditionally, even after I broke my ankle. However, after thirty years it took it's toll on my body particularly my back, legs and knees. After the surgery on my bad ankle in 2006 I had no choice but to give wfp a go or give up a job I really enjoyed. Within a week I wished I'd done it long before.
I use a trolley and barrels and work from my car as this has proved to be the best method for me and is perfect for my round.
It's very different to tradding but I really enjoy it.