if you want to save money on shopping and store and restaurants, you can sign up your favorite stores email list. this is if you have lots of time to go over tons of email a day, I usually received 15-30 emails a day from stores I sign up. they will send you online or store coupon, and will update you with new stores opening and new products. if you don't like it or you feel they send you too much email you can modify it, some site lets you receive email once a day/week/month. or you can you unsubscribe.
you need to have lots of time and patience to go over all these emails. but you can get discounts, coupons and heard about promotions earlier than most people. this is how I know which store has buy 1 get 1 free or buy 1 get 1 50% off, sometimes they let you try new product for free when it first came out and benefits for new store grand opening. I take it as a fun way reviewing your favorite store/restaurant and look at the pretty pixture everyday. some coupon use for stores only, you can print it out or you can keep in your phone and show them the coupon code when you visit. be sure to check the exp. date, some expire soon some expire up to 3 month later. so you can manage which store/restaurant to visit first and which one to save it for later. of course you want to use the most benefit to you first. like the most discount or buy 1 get 1 free. you can also group it by area, so if you know today you're going to a certain area, you can gather all the coupon in that area when you go visit.