I have been winter sowing like crazy and I hope to have lots of extra plants to share.
I live in Schenectady NY as well and if you mean Plant swap as in trade, I have a few plants that need homes. I have plants that are cold hardy to this zone such as Mint, an apple tree, and I also have a silver maple seedling (if it survived in the pot outside. We'll see when the spring arrives). I also have a Needle palm (which with sufficient protection will be the only palm tree capable of growing here) but it's not cold tolerant yet. It's still a baby.
If you live close by, we can work something out. Just let me know.
Oh, and according to the United States department of Agriculture, Schenectady is now zone 5b. Not 5a anymore. Just letting you know.