Sheldon:I question your premise. How is a new suit going to prevent me from passing out in front of a ballroom full of people?
Penny:It'll give you confidence. You know, sometimes when I'm feeling all stressed out about something, I go out and buy a cute top or a fun skirt, and I have a whole new outlook on life.
Sheldon:Don't you eventually realize you're just the same stressed-out person in a cute top or a fun skirt?
Penny:Yep, that's when I buy shoes.