So I was going through my wallet earlier and started wondering if any of my old bills might actually be worth something. Turns out some $2, $50 and $100 notes still in circulation are worth way more than face value if you know what to look for.

The key thing is checking for specific series years and conditions. Like, a 1928 $2 bill with a red seal could fetch anywhere from $4 to $175 depending on condition. Even crazier, an uncirculated one from that era can hit $20k. But here's the interesting part - those 1995 $2 star notes? Most people think they're just regular bills, but certain uncirculated ones are valued around $500. A star note worth that much just sitting in someone's drawer is wild.

For $50s, the older the better. 1934 series bills in crisp condition go for $65-$75, and the 1929 brown seal ones can hit $75-$100 if they're in decent shape. The 1985 $50 star notes are where it gets interesting though - uncirculated versions can be worth $60 to $398.

$100 bills are the big ones. A 1966 red seal can be worth $135-$169, and certain 1996 $100 star notes are going for $150-$350. Even newer stuff like the 2009A series with unique serial numbers or rare printings can exceed $1,000.

The main thing collectors care about is rarity, condition, and whether it's a star note - that's basically a replacement bill that's always more sought after. If you find any old bills, it's worth checking the serial numbers and condition before assuming they're just pocket change. Might be sitting on something valuable.