I haven't gotten around to actually planting seeds yet but have been stratifying some from the Mile High swap and the earlier one in paper towels. Thus far, I have one little seedling of spicebush from SameOldBrandNew and 2 seedlings of Passiflora 'Frederick' from Mdntnmtgmy.
I also had some sprouting of Virginia bluebell seeds from the former trader and opuntia from the latter, but those haven't developed into seedlings yet. I'm thinking maybe I kept the opuntia seeds too cool after taking them out of their paper towel and potting them up. If anybody has experience on what works for them, please let me know, since the online opinions about that seem to vary quite a bit!
Also, some seeds of Allium schubertii from Jlee160 have just begun to sprout in their paper towel. And I really need to get my begonia seeds planted!