I just bought a winter weight sweater at Zappos.com and saved about $50, free shipping. Yeah, I know it is from last winter, but it will keep me warm.
How thrifty am I? I've always been careful but thanks to internet shopping I can find the best prices on what we need. I buy fresh food stuffs locally and don't over buy in quantity (The Sam's Club effect where people buy too much and waste food).
I buy good quality tea leaves and use a tea pot. Better tea and less expensive per cup. I don't drink sodas, diet or otherwise. Money saved there.