I think with things like clothing they need protecting, food products can just go into ordinary bags but you would not want to mix the clothing and food in the same bags.
I always ask for the receipt to go into the bag as I have lost many receipts from stuffing them into handbags and purses. I take my stash of bags when I go food shopping but rarely when I go clothes shopping. Could do better!
I thought "biodegradeable" polybags just disintegrated into tiny particles of polythene and end up in big rafts somewhere in the worlds oceans poisoning wild life. I don't think they are truly truly biodegradeable, as paper bags might be.
They cause a hell of a mess when I find the odd one in the my shed and the tiny bits of plastic fall about every where. The work of the Devil.
A Good Year Film4 6.40 tonight
Tommy Robinson arrested. Police using their existing powers