I don't tip you....
For a start the £3-5 they charge is quite a bit for a delivery - even if they do unfortunately pass very little onto yourself. However, I do try to be as helpful as possible. I happily carry the food from the van to the door, so they literally just have to put it outside their van. One guy the other day, said I was the first person all day that had carried in the shopping for him. Felt remarkably sorry for him, especially as whilst it was quite cold, it wasn't wet. Maybe I should start asking them if they'd prefer a £1 tip, or just for me to carry in the shopping instead....
kd