You've carefully saved some of your income for an emergency. Fantastic. You're maxing out your employer's match to your 401(k). Be proud. Your friends no longer invite you out to dinner because you always insist on splitting an entrée. Uh, it might be time to rethink your priorities.
Once you cross the line from frugal to ultra-cheap, your habits may cost you more than friendships. In your pursuit to save money, you could actually pay a price.
Here are seven signs you've left frugal finances behind and are entering extreme tightwad territory.