I've found the absolute best way to kill an afternoon and feel better about yourself. Let me tell you:
Go into your closet and find the best clothes you have. Pick out the best "practical" outfit. Cute capris, a very nice top, and some kitten heels work perfectly. And if you have a designer purse to go with, even better.
Now, drive to La Encantada. First, have lunch at AJs to get your energy up. Bask in the good food and service.
Now, head out. Do you want to try on clothes you could never afford? Talbots is the place. Want to redecorate your home, all in your mind? Wander around Crate and Barrel. Just wander the mall, lusting after the computers and swimsuits and shoes you could never afford. Maybe get a salespersons hopes up, then decline to buy. Since you look the part, you can do anything!