MD, I always wear my socks before washing them the firsttime, but am not sure if that is what your asking. I also (due to sweating) only wear a pair sock once before washing, any more than that they might just crawl away[:'(]

As to a tight fit on your feet, that is not desired. I would look for thinner socks or bigger boots. The poly sock liners I wear are really thin and then I change the weight of wool sock dependant on weather. I also stretch my woolie's so they don't fit snug.

For your treestand if wind channeling up is causing a problem we not try a rubber mat and hold it on with tie straps. Carpet would work to but it also traps odour, something to consider.

Rackattack brought up a great idea I forgot to mention that is the hot hands in your boots, they do work if you have the room!

Since your stand hunting I good quality sleeping bag might work to rap up in (youth model may work & be less bulky than an adult version). Of course you must be able to shoot from a seated position.