Bikes at Work has some impressive examples:
delivering 10 bags of groceries plus 15 rolls of paper towels and 70 packages of toilet paper
And I thought pulling 3 kids was a lot! So now I'm all excited about how much I can do with a bike, instead of using the car. If I can keep up the riding through the winter, then by spring I should be in good enough shape to start taking on a bit more.
What else can be done on a bike?