The stores by me will not let you use 2 mfg coupons for a bogo. They will only let you use one as what I was told as the other is free so you can not use it on the second free purchase. This may vary from store to store though does not hurt to ask the cashier.
Last week (sale that ended yesterday) Walgreens had BOGO for Lysol toilet bowl cleaner for $2.78. I handed the cashier 2 - 50 cent off coupons for the Lysol tb cleaner and there was no problem. I got 2/$1.78
i think it depends on the way their computers are set up
I thought I read somewhere (can't remember the source) that it depends on the way a store has their system set up... some have it ring ea. item up half price for bogo, while some might have it ring one up the original and comp the second... so i think a lot of it depends on the store and the way the register system is set up..
i used 2 MFR coupons today at cvs on bogo palm liquid dish soap.... one item rang up the regular price and the other rang up .00, but it took the $.25 off of each.