I'm also a programmer, as working in front of computer day and day, my right hand is so tired and get some pain. So I tried to mouse in both hands. I find that it is really an efficient way to release pains. At first I switched the mouse buttons in windows control panel, but it taken me several steps to finish it, and I can't flip the cursor, so I made a utility. With it I can switch mouse buttons and flip the cursor immediately by pressing a hotkey. I gave it a name: "Ambidexter Mouse", do you want to have a try:
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