Do you miss the old days of actually hearing more than your keyboard when you type? For me I love the visceral sound of typebars striking a ribbon or even the 70's typeballs in Selectrics. Ever wanted to make your computer sound like a typewriter?
If you're using Mac OS X here's how, for free:
01) Launch System Preferences.
02) Hit Universal Access
03) Hit Keyboard
04) Turn "Slow Keys" ON
05) Tick "Use click key sounds"
06) Set "Acceptance Delay" to Short
It's also not a bad joke to play on friends.