I was very seriously considering chopping an inch or two off the legs of my desk, because it's too tall for any of my chairs and my arms are at a weird angle that's bad for my arthritis and encourages RSI and CTS. Like, so close, I had dug my marking gauge and flush cut saw out and was starting to move stuff.
But, then I thought I should check to see if I can get taller casters for the chair, first...turns out I can get 1.5" extra height from 3" roller blade casters for under twenty bucks.