I like using Excel for this because I can sort by the pollen parent making it easy to see if I have made a cross, and then I can sort back by the cross number. Each individual bloom that has been pollinated is marked with the cross number. A couple of twists and I have a tag. I use a Sharpie Permanent Marker to write the cross number on the tag and gently wrap the twistie around the base of the bloom. If harvesting on a rainy day, I use a paper towel to dry the seeds a little before placing them in the bag.
Wet seeds can sometimes germinate prematurely or become moldy even in the refrigerator.
When the last seeds have been harvested, I will sort the baggies by cross number, combining all the seeds from a particular cross in one bag. Planting the seeds If it's been a good year, I will usually have more seeds than I can reasonably expect to grow. To decide which seeds will be planted, I go back to the Excel spreadsheet I created when making my crosses. I add another column which is a planting code. Then I sort descending by this code.