Are you supposed to tip someone who helps you carry items from a store to your car?
This kind of situation is very much up to the individual. You were not 'supposed' to tip him, but if the clerk was helping you in a way that he normally doesn't, if would have been nice to give him a tip. But he certainly wouldn't actually expect one.
No, you do not tip for that.
No you are not.
No one's going to expect a tip from you after you've already payed and put your money away.
There is no official obligation to tip in this situation and ultimately, comes down to personal choice and what was comfortable for you.
No, you do not tip. You just say thank you for helping.
You don't HAVE TO Tip Anyone, But in this case, it may have been nice to.