One of the biggest day-enders for many people is cold feet. No matter what people tell you to do with socks and boot combos, some people's feet just get cold no matter what. However, I've found a good pair of boot blankets, pick your brand, work wonders. What I do is stap the boot blankets over my insulated rubber boots when on stand or in blind and then slip in a large chemical warmer over my toes in each. Do this and your feet will not get cold no matter who you are. In fact, mine are downright toasty for the whole day.