I would number same day,same crosses one number.Same cross different day,different number.Everyone has a system that works for them.I would note how many crosses were made,# of pods formed,# of pods matured,# aborted(if any),heat,drought,any outstanding factors,how many seeds per pod,% of germination.Seems like a real PIA,but if you really get into it,you will be glad you have detailed notes.

Betsy

aimlyn, I use abbreviated names and the date. For instance, if I put pollen from Pearl Harbor on Victorian Lace this morning, the tag would look like this - 070619 VICT x PHAR. If I do more than one cross with the same parents, I change the date to 070619-2.
Have fun!
Kathy

aimlyn,
The stigma is on the end of the pistil style. The pistil normally has three sections but they are fused together. When the flower is receptive, the stigma will be moist with stigmatic fluid.
I use an even more abbreviated system. Kathy's cross here would have been VLxPH and date 6.19. I make sure all hybridizing abbreviations are unique and all crosses are recorded.
I routinely make several attempts at the same cross. Sometimes only 1 out of 6 will be successful, especially when you're dealing with tets.
Ed