Originally Posted by
TheMadBrewer
Also, mostly "back-to-back" doesn't involve throwing away a coupon but flying all flights but in such a way that it get's around having a particular night's stay (usually Saturday but doesn't have to be).
Throwing away ticket coupons is more often associated with hidden city ticketing -- booking A-B-C/C-B-A and getting off at B on the return.
The end-on-end ticketing that the OP wants to do is just fine. I've even had baggage checked all the way through on both itins if the layover is short enough.