Wonder if anyone has the same experience...

I have a lot of digital photos (we all do right?). I keep them on CDs. I send some for developing. Get the photo prints and keeps in albums. 3 months later, while going through my digital photo collections on CD, I decide to print a picture. Problem is, I do not know for sure if I have already sent it for printing!

Anyone knows if there are any software that allows you to handle this situation??