My most cheapa$$ thing is driving my 1998 Honda Civic hatchback. I did spend $850 to change the timing belt and several other maintenance items last year (thanks Steve, who advised me that the timing belt might break). The car has 65,000 miles and gets 37 mpg. At my current driving rate, the car will probably last longer than I will (Hondas usually last 250,000 miles). This saved me about $17,000 on buying a new car (since I like the Honda Fit).

My second most cheapa$$ thing was buying and installing a new hard drive in my computer, which I bought refurbished from HP in 2007 (thanks to OrmontUS, who advised me that the hard disk might crash). Despite tons of great advice that I was nuts (including from the estimable PSUEngineer), I'm happy because I can continue to run Windows XP and my computer is much faster. This saved me about $700 on buying a new computer.

Wendy