A couple of others have mentioned it, but I feel rich every time I go to the grocery store. If I want nuts, berries, smoked salmon, wine, or something else delicious, I buy it. Sometimes I look at the price and start to put it back, but then I remember that my mortgage is paid off, I can afford it, and if it's good for me and tastes good, I buy it. Then when I load up my car afterwards, I feel rich and grateful.