Normally, most of the websites you can print the grocery coupons from only work on a computer, even you can get coupon books mailed to your home for free. But it completely depends on Ref.com's support program at the time you search, so please visit the Ref.com site to know more details.

It depends! Normally, the percentage that you can save with that Ref.com 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.

Usually, Coupon Stacking is not allowed at Ref.com. However, the store will surely give out notice if available.

Our advice for you to use Ref.com Coupon effectively is to choose the right day.
Like thousands of other consumers, the time of promotion is when they choose to
shop at Ref.com, so take advantage of coupons released on those days to save.

Shoppers can get coupons for their first purchase at the store. However, it is not all the time, sometimes, they cannot apply a discount on items selling out or items not contained in the promotion program. It depends on the time you shop at Ref.com.