The caps lock key is very useful, if you rebind it to something else. I use it for Enso, which lets you start programs, open files, spellcheck, count words, do

The caps lock key is very useful, if you rebind it to something else. I use it for Enso, which lets you start programs, open files, spellcheck, count words, do math, and things like that. Using it to swtich between input methods is another good choice.