Clipping coupons and endlessly Googling for coupons and rebates sounds exhausting and limiting. Especially if you don’t know if you’ll ever find something for the item you want to buy. With Ibotta Inc.’s shopping app, however, shoppers get instant rebate gratification. Unveiled this week, Ibotta has created a new shopping list feature that finds cash-back rebates when users add desired items to their shopping list. Items that can be added range from food to paper goods to office supplies to clothing items and much more, available at a range of stores, including Walmart, CVS, Amazon.com, Best Buy and Babies R Us.