spend it... i found a 08889990 combination today and spent that too... not really worthy of keeping unless it's a binary (two digit combination), radar (ie 12344321) or ladder (11223344, 12345678) or repeater (12341234). or even a low digit (00001234 or under). I have some notes that I think are cool, so I kept them, like 38389393, but it's not really worth much over face. keep looking... do what i do... go to the bank and grab like 200 bucks in singles... they are the easiest to find things and they sell more on ebay than any other demonination.
This is a $5 bill worth saving. (see attachment) Actually got this in change at a gas station only a few weeks ago.
That is a very nice $5 note you've got there.Have you ever found a Silver Certificate in change? Aidan.
People also collect DATE notes, say 10202006, this could be used to commemorate a baby born on Oct 20th of this year. I have even seen people do reverse dates... i.e. 20062010 for Oct 20th, 2006 as well.