Weekend shopping

As most people, I work during the week so, if I need to buy anything (be it food, clothes or anything for my house) I MUST go in the weekend.
As much as I try to stay in a good mood, I become soon allergic to all those people: too much people in the street, too much people waiting on the line. There is no way to avoid it.
My intentions in the morning of buying several things needed, usually ends up in coming back home with empty hands.
I just can't help it. I think I'm allergic to crowds.