Should I Help?

Went to Sam's Club this afternoon and purchased some items. Among my goods were some relatively heavy items. Two cases of bottled water and a case of soda. The lady at the register was stocky but older. She was huffing and puffing when she scanned the water and soda and put them in my cart. With the newly remodeled register areas, I really couldn't get around to help her. I felt kind of bad that she actually worked up a sweat and was out of breath when she thanked me and gave me my receipt. Well, I guess that's what she gets paid for.