-- You no longer know what time fast food drive-thru windows close. -- Your potted plants stay alive. -- You pay at least a dollar more than the minimum payment on your credit card bill. -- Your friends' hook-ups and break-ups are now marriages and divorces. -- You attend parties that the police don't raid. -- You're not expected to leave the room when the adults are talking. -- You refer to college students as "those kids." -- You drink wine, scotch and martinis instead of just beer, beer and beer. -- You feed your dog Science Diet instead of leftover pizza. -- At 6 a.m., you're putting your contact lens in instead of taking them out. -- Naps are no longer weekday options. -- Dating involves dinner and a movie, not keggers and Ecstasy. -- Grocery lists contain more than toilet paper and potato chips. -- You leave parties because you have a busy day tomorrow, not because the EMS guy has strapped you down.