From: filkertom	Date: November 3rd, 2009 09:50 am (UTC)		(Link)

Very much agreed. Especially since it's, like, an extra 50¢ or $1 or $2 or $3. Sure, things are tight, but that little extra reaps benefits beyond the cash. You improve your reputation with that server and restaurant, you improve their mood so their service is better for the next few people, you directly stimulate the economy that much more, and nobody spits in your soup.