An addiction to social media can pay off…literally. So you’ll know exactly the right time to strike, sign up to receive your favorite retailer’s newsletter—or better yet, follow the brand’s social media feed—to get the first word on when sales begin and access exclusive coupon codes. Then mark the biggest benchmark sales of the year on your calendar: Black Friday (the Friday after Thanksgiving), Cyber Monday (the Monday after Thanksgiving), Green Monday (the second Monday in December), and semi-annual, mid-season sales (usually around July and early January). Can’t wait until then? The best day—of every week—to check for flash sales and deal updates is Friday when most sale events begin.