Big Lots: 20% Off Your Entire Purchase This post may contain affiliate links. Please see the full disclosure policy here. Posted on March 5, 2011 Written by Mary Leave a Comment GO HERE to print a coupon to save 20% off your entire purchase at Big Lots Tomorrow 3/6 only! The last few times they offered this they also had the coupons in-store. But I would bring the printable with you just in case!