When I was over there, before we got a car, I used to try and plan my shopping so that DH could just meet me at the commissary as I was leaving. We'd take a cab back and then he'd help me haul everything up.
To v's comment about wheelie things, I resisted them in NY for 10 years. But in NY, I also did a lot of Fresh Direct orders and many of my local stores offered home delivery. That is not the case here, so I've given in to the shopping cart. A bag like Tacom's is also quite handy to have.