How to Know If Your Business Idea Is Stupid

Everybody's been there. You're standing around the water cooler talking with your coworkers, talking with friends over drinks, or maybe just taking a shower. Then it hits you -- a brilliant business idea. Everybody will want this! This will sell like hotcakes! I can't believe nobody thought of this before! Then you start talking about it with your friends and family. No surprise -- everybody has an opinion. Your mom thinks it's a great idea. Your brother-in-law sees lots of problems. Your best f...