I was particularly happy about the way this deal turned out.
Office Max Gift Card $50 - Earned $10 MaxPerk reward
Two days later, bought:
Duracell Coppertop batteries, 20-pk $16.99 - Earned $16.98 MaxPerk reward
10-ream case of paper $41.99 - Earned $32 MaxPerk reward
I was able to use $10 off $50 competitor coupon, making total $53.27 ($48.98 + tax $4.29). Paid w/ previously purchased GC and additional $3.27 OOP.
Rewards will issue by the end of January. So, for $53.27 I was able to get batteries, a case of paper, and $58.98 to spend later. I'll probably go back and submit the empty ink cartridges to add to this period's rewards. I have 6, so I think that another $12.