I was quite impressed with Windows Explorer today: sorting a load of files with numbers as filenames actually sorted them numerically, rather than alphanumerically.
As you can see in the screen shot, the leading zeroes are ignored. Brilliant.
I'm sure loads of people know this one already, and if you're one of them, then you should feel really bad for not telling me sooner. If you didn't know, then have a look at my handy Send To tip. That's cool too.