It seems the most I can take my two kids and one wheelchair in and out of the car is twice per outing. Call me lazy, call me weak but after two errands I have exhausted my patience and my back. Perhaps this is true with all kids, but my kids start to fuss and whine after two stops. I have a mental rule I go by: if it takes longer to get them out of the car than it does to complete the errand, I don't do it with them. Needless to say, I have become a late night shopper - sans kids. What's your rule?