My Bi-Lo gives a 5 cent credit per bag for bringing my own reusable bags! They don't even have to be Bi-Lo bags.
It's "secret code 900" at the register. Even works on the self-check out lane. Put the bag on the scale like you are weighing produce, input the code 900, quantity for the number of bags you have and a 5 cent credit appears on our registers. The cashier at self-checkout told me to start doing my own bag credits because he remembered me, and I think got tired of my always asking for my credit.
MY STORE AT LEAST. I don't think all Bi-Lo's are participating. I'm one of the lucky ones. It's worth checking into, though.