| Ray,
Possibly cheaper (good old yorkshur trait I know!!:P) and more flexible is the item I use.
It's a 9m retracting tape measure from any hardware outlet. It wedges between the rear brake pedal and the swingarm pivot bolt lug thus locking the back wheel solid (if your rear brake's any good)
Makes getting the rear wheel off much easier and possible with one pair of hands and no bloodloss. Would work the same for the 'other' jobs you mention.
Regards, Gc | 
Guido
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