Rules of Thumb.org
There are hard facts, and then there are rules of thumb. And this site is where you'll find enough of them to fake your way through life for a while.
KYW's Bob Bicknell reports that, for example, if you're getting bothered by flying insects, it's probably going to rain. Or when staying in a hotel, the site of the bed farthest from the phone will be the firmest.
Now, some of these are silly, still, there's a lot to learn here, if you don't mind feeling a bit folksy.
Go to RulesofThumb.org.