Found several Apple case deals on Groupon (looks like clearance/closeout pricing), which as most of you know will also work with the next gen hardware (size/shape will be the same). You can also combine these deals with 6% CB from one of the popular sites. See description below because not all sizes and colors are on sale and I posted what I thought were the better deals.

iPhone 7 & 8 Clear View Slim Case
Rose Gold Standard $ 2.99
Black Standard $ 8.99
Rose Gold Plus $ 8.99
Black Plus $ 2.99