All of the above are great tips and tricks.
When spinning try the ankling technique described here:
http://cyclingtips.com.au/2009/05/efficiency-of-pedal-stroke-ankling/
It does take practice to perfect and also to have the strength to do it.
Change the pedal force orientations in the article...
With your arm I suggest using wider handlebars with all the controls on the right.
You can get brake levers that work both brakes at the same time (you have probably already done this). The wider bars will provide more control at low speeds.
With the limp in your left leg I assume it is...
Camelback
"Charles...I can not seem to effectively drink from these things. When I need a drink, no matter how hard I draw, I get nothing more than a sparse trickle. And then I am out of breath from sucking so hard! What's the secret?"
Here are some solutions that work for me in no...