Of course not, most coupons may be used only by you when you received them directly from Zazzle. As the Zazzle coupon includes your User ID, it cannot be resold or transferred in any way.

Normally, one discount code is only applied for one offer. However, If the users put a vast of items in their cart, it is easy to use one coupon code to purchase items. It depends on Zazzle's policy, you can contact Zazzle via mail for your reference.

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 Zazzle's support program at the time you search, so please visit the Zazzle site to know more details.

It depends! Normally, the percentage that you can save with that Zazzle 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 Zazzle. However, the store will surely give out notice if available.