I usually try to take my cloth bags with me. Yet, sometimes I forget and get the store's plastic bags. I heard the plastic bags are causing problems for the environment.
I got a huge cloth bag last week for 1.50 at Save A Lot.I've been using cloth bags for as long as I can remember. I purchased a bunch of different colors years ago from Baggu. They last forever and wash nicely. OMG! I just checked and now they are $10.00 each. Yikes. I think they were 3 for 5 when I bought them. They would be very easy to sew.
Some cloth bags can be very large, too. I carry about 4 of them to the store along with a few thick plastic bags I use over and over.If I only have a few groceries, I always ask for paper bags. Easier to carry. You can get a lot of stuff in a paper bag. Plus I use paper sacks for a lot of things. Never have thrown one away.
If I have a ton of groceries I let them use plastic. No one seems to know how to load paper sacks. They always start with the round things on the bottom. Some stores only have plastic.Not into carrying my own cloth bags. It would take too many. I try to go grocery shopping as seldom as possible. Hate it.