I get emails from LL Bean with sales, usually a percent off a category, like camping gear 20% off, for example. Can't recall if they've ever done that with outerwear.
Another thing they've done the last two years is a deal in the weeks leading up to Christmas where you get a coupon good for a certain amount with a purchase of a certain amount (sorry, I can't remember the amounts). One year, all my son asked for were warm socks, so I got some really nice wool ones, just enough to get the coupon. Then I took that coupon and got more socks, again spending just enough above that to get another coupon. And so on, until he had a nice little pile of good quality wool socks under the Christmas tree.
Oh, and shipping is free all the time.