To use the Walmart coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the Walmart checkout system or a customized checkout system that accepts the coupon.

Simply, access the Walmart site and find your coupons bar. All the latest

coupons will be shown out, note that the coupons bar will only appear when you have coupons available.

To avoid this problem, you should check out carefully Walmart promo code before that promo code could be expired, some promo codes are tied to a minimum purchase, a first-time purchase, or tied to geography, and other reasons.

It depends! Normally, the percentage that you can save with that Walmart Coupon will be shown right on the page, so you can see if it is applied sitewide or not. However, once you are not sure, try it right on their's products you want to buy.

Most Big Discount Events of the year witnessed a vast number of coupons from Walmart released. Especially, on federal holidays such as New Year’s Sale, Thanksgiving, Christmas... or on other important days such as Valentine’s Day, Easter, and Father’s Day..., customers also can buy at Walmart with numerous coupons.

Yes. Like all other stores, Walmart offers a number of Cyber Monday Coupons. Don't forget to check the expiry date before making your purchase.