For example, I've been looking at appliances, and occasionally see nice appliances on sale on craigslist or the like... these would be dead simple to pick up if I had a truck, but I'm a small car kind of person.
Similarly, I've been putting off a Home Depot trip to buy lumber for a project because I would need to get the plywood cut down pretty small to fit in my car, and I can't be bothered to rent a truck.