Somethng works for everyone, problem is no one will know what works for you.

Answer these questions:

Are you sitting on stand all day?
Are you in a tree , or on the ground?
Are you cold blooded, have poor circulation?
Does your body get cold, or just your feet?

If you are still hunting, you may need a lighter boot. Always try the Merino wool socks in different thicknesses. They are the best.

If you are stand hunting wear your normal boots and get a pair of these: http://www.icebreakerinc.com/php/bootBlanket.php

If you are still cold, like saskatchewan cold, get one of these:http://www.heaterbodysuit.com/index.htm

You can also try isometric exercises while on stand, like scrunching up your toes for sets of 100 or 200. This will keep your blood flowing to your extremities. Also, keep in mind that your blood flow lessens to your extremities as you cool down. You can also get a few of those heat packs and place them near your kidneys and this will help your citculation. Don't buy those cheap ass handwarmers. go to the pharmacy and buy a 6 pack of those sore neck heat pads. cut them in half and place one near your kidneys. They are awesome. I hunt in very cold weather and I stay on stand from before first light until dark.