Cold feet, literally

I have posted in other threads on this forum that I am new to hunting. This is my first full season to actually get out and hunt the whole season. So as posted previously I am looking for any and all good advice. I have been out this year in temps ranging from low 50's to single digits. I live in Central Illinois. The weather can change here in a matter 15 - 30 minutes quite frequently during the fall and winter. I'm not sure what to do about keeping my feet warm. After about 2 to 3 hours in the field (days 30 and below) my feet, toes especially, get really cold. Sometimes to the point where it just gets unbearable (or so I think). Now I have no problem suckin' it up. But if I can avoid it, well duh that would be great. Some things that I have done already include buying a good pair of warm, dry boots (1200 Gram Thinsulate rubber boots made by Columbia). This was an improvement, for my feet, to my previous boots, but my feet still wind up getting pretty cold. I have moisture wicking socks as a base, with wool blend socks over that. I have tried a pair of cotton socks in between those once or twice with no success there. I have used foot warmer insoles, inserted after walking in. These don't do sqaut usually. I've checked to see if my feet were sweating from walking in. This hasn't been a problem. The moisture wicking socks take care of that. I'm not sure what else to do. I am looking for advice so I'm not out buying every product on the market. Maybe I just need to kick a possible case of wussitis. I don't usually like buying everything available because I end up buying the best thing last. It can get expensive doing things that way. I have also found that the most expensive things aren't always the best things. By the way, my feet are the only thing I have trouble keeping warm.
 
Thanks to all,
Ryan

jlh,
 
I did buy a size larger mainly for the reason you mentioned. I have not tried putting the body warmers on my feet. I will. I did try the little hand warmers under my toes. That worked so so. Maybe on top and larger would be better. How much does a pair of battery socks cost?  Thanks, Ryan

If your gonna still hunt or just hunt on stand all day.  there is only one thing that has ever kept my feet warm

"Micky Mouse Boots" 

The militay issue all rubber with a wool layer wedged between.  The good ones have the air valves that let the paratroopers equalize the pressure inside the sealed part of the boot while airborne.

I have two pairs a white pair and a black and have hunted  down to -20 below and stayed put with my feet never getting cold.  Hell you dont even have to put on more than 1 pair of good socks.

these are heavy and not for walking.  But they will let you stay put all day no matter the temparture. Im sure some of the other guys should tell you the same thing.
 
find them at your local military surplus or on ebay.  But watch ebay some are not the real deal and the sizes run really goofy so if you can go and find them where you can try them on its better.  i wear an 11 in shoes and a 9.5 wide fits me in the mickey.

just my 2 cents

101 -- even if your feet don't sweat, but just warm up, it'll still cause moisture once the feet/boots cool down.  Stick your hand inside your boots (1200 gram rubber ones) after a decent walk -- they'll be warm sometimes hot.  Try cooling them down by airing them out before putting your feet back in.  It only takes a few seconds.  I know it sounds sort of silly but I haven't have any cold feet problems since doing this. 
 

I find that keeping my feet warm may have nothing to do with footwear, but keeping with my head warm.  When I wear a thick stocking cap and a face mask, I stay warmer, in general.  Keep your head and neck covered.  It really helps.  Dont walk in with your warmest cap/facemask on. Cover your head and neck completely once you get onto the stand (even if your head and neck feel warm), as long as you aren't sweating.  With the boots you have, if you cover your head and neck well, you'll last longer than 2-3 hours.

Boot Blankets if you are sitting all day...If its cold and your feet are dry and you have proper footwear on get to your stand throw on the boot blankets and snug as a bug...you cant go hiking through the woods with them, but they are great for still hunting or being in a stand all day.