Here, I bring Pao whenever I could bring him. I know he'd rather be out with me than staying at home. He is very good in his bag. He will stay still and be very quiet and thinks he is "invisible" hehe. Sometimes he falls asleep inside when he is tired lol
I have brought him to Wal-Mart before a few times in the bag and I have seen bigger dogs in there with a leash. Also, we go to Canadian Tire, dogs are allowed there and to the mall. I just carry him or put him in his bag when I go in to a store. I don't bring him to our local Petsmart because I have seen a lot of owners who are not able to control their big dogs and they go wild in the store.
The only down point is, I can only carry him for so long because 10 pounds to me is pretty heavy so we have to take breaks go outside and put him down on a leash.