There are also a lot of websites that post these coupon codes. Sometimes there are even better ones, so I always do a search before I order anything online. Usually there is some kind of discount available - $ off, % off, or free shipping, etc.
That Lane Bryant one is one that comes out periodically each year. They also do one that is $15 off of $15 in the store from time to time that I always watch for. Last year I got two sleep camisoles and some new undies this way for free.
Life's a journey, not a destination.
It's easier to stay on plan than to get back on plan.