Mark Cuban's 12 Rules for Startups
http://www.entrepreneur.com/article/222524
10. Never buy swag. A sure sign of failure for a startup is when someone sends me logo-embroidered polo shirts. If your people are at shows and in public, it's okay to buy for your own employees, but if you really think people are going to wear your branded polo when they're out and about, you are mistaken and have no idea how to spend your money.