Some things, like the wristlets (or long sleeve shirts), stretches, icing, taking scheduled rest breaks, and so forth, you can start doing right away. If you've got too many work areas to make any kind of equipment adaptation on the cheap work for you, then you've clearly got a problem. OSHA may be an appropriate answer.

A quick warning on ice: once you cool down your wrists (to reduce swelling), you need to let them warm back up again before using them (~15 minutes). Otherwise, you'll hurt yourself even worse. You may find temperature contrast baths (alternating hot/cold water) to have a similar effect to ice, but you can finish up with the warm water, shortening the time for your wrists to come back to normal temperature.