Earn up to 20x points with United shopping portal (including one deal ending today)

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In addition to paid travel and credit card sign-up bonuses, another great way to earn points is through shopping portals. For those of you who may not know, shopping portals give you additional points for buying products through them.

(READ MORE: Earning Miles Through Shopping Portals)

(READ MORE:  How I earned over 1.6 million points in 2016)

For one week only starting on Sunday July 15, United MileagePlus shopping portal is offering Summer Series July promotion where you can earn up to 10x miles per dollar (but some stores are showing 20x miles per dollar)! Start your back to school shopping early and earn some handsome amount of extra miles.

Below is the list of stores offering extra bonus points on Sunday July 15. It seems the list of store will change…