Alana,
I clean my seeds the day I harvest them. NO, I'm not that good. I just collect a little of each type so it's easy to clean them right away. They go on paper plates on the spare room bed to dry for a couple of weeks and into envies they go. I can be ready whenever you decide to post the swap.
I'm going to TRY to do two things this year. The first is to collect more of each variety, I think I could have given several others seeds that I just let drop. The second is to collect from all my plants. I tend to collect only seeds of plants that I think might be wanted. I saw some that I don't collect on wish lists. I'll try to be better at collecting next year
