I use a dvorak layout, and I find it much more comfortable than qwerty. When I need to use someone else's machine for something nontrivial, I just change the OS

I use a dvorak layout, and I find it much more comfortable than qwerty. When I need to use someone else's machine for something nontrivial, I just change the OS setting temporarily. The overhead doesn't bother me, and the only thing I really miss are some custom keybindings (e.g. CAPS -> delete...).