Any item in your galleries qualify, but multiple numbers of the same thing only counts for 1 offer toward the bonus. The great deal is using some of your earnings to buy an e-gift card. If you just put in the minimum amount each gift card qualifies as an offer toward your bonuses. So if you shop at Walmart, you can get 2 $5 gift cards to finish your bonus without leaving your couch! I used Walmart gc's as an example as it is the only grocery store on the gift card list for me. Using earnings for gc's requires you to keep a cushion of money in your Ibotta earnings account. That works for me but may not work for everyone. It's a sweet perk Ibotta has given us.
