$20 off $40 purchase from Lane Bryant

This offer is only good online, but you can opt for free shipping to store to avoid shipping charges.  Use code:  020006914.  Offer expires 4/19.

Alternately (or you can try using them together) you can use code:  040006062 for buy 1 get 1 free bras!

You can also get 11% cashback by shopping through Bing.  Just do a search for Lane Bryant and click through there.  Again, it may void your cashback to use a coupon code, but it may not.  It's worth a try at least.

Here's a link to their sales for the best deals.