I always try to remember to take our own bags with me to the supermarket, it's a fairly ingrained habit now, even if we are away in Britain I will have a couple in the car should we do any impromptu shopping. "Bags for life" once they get too well worn can be exchanged for a new ones, hence the self explanatory name, I'm wondering if everybody is aware of that, can't help noticing some people do still turn up without bags and then buy a few. The couple of times I've forgot, I've just shoved everything back in the trolley once I've paid for it, take it out to the car, load it in the boot and then when I get home get my bags from the house and pack my shopping to carry in. I do have a couple of nice hessian bags I should really use, I keep my library books in one, it's become my go to bag for that purpose.