hmm, could not think of any extreme frugal practices. Riding my bike to work to some may be considered extreme? I have an old plastic McDonald's cup I use for re-fills at the convenience store next to work. 32oz refills for 69 cents, compared to regular price of 99 cents. Or, when I just use the office water cooler and refill my water bottle, I stick $ 1.00 into my desk drawer and save. I drink to much Diet Coke and hence the old McDonald's cup has saved me a bunch of money over the years!