How Strict Are You with Food Expiration and Best By Dates?

[Editor's Note: Ugh. The very idea of eating expired yogurt makes me queasy. I'm really picky about expiration dates on dairy goods -- on other foods, not so much. How about you? Would you eat yogurt that expired yesterday? - Denise] ...more
I may be in the minority on this one - if I have opened a large container of yogurt I give it ... more