Consider adding other "universal" things that can fit easily on top of coffee. For example I smoke a pack of cigarettes a day, and other than when I remember t

Consider adding other "universal" things that can fit easily on top of coffee. For example I smoke a pack of cigarettes a day, and other than when I remember to buy a carton ahead of time I generally end up going to a shop each day specifically to buy them, they don't fit my general groceries timetable. Somebody already suggested newspapers... maybe a few other easy-to-deliver snacks/drinks (can of coke, crisps..)? I'm sure there's some more things that X% of people are already buying once a day and would like to save hassle on. The more you bring, the more the delivery charge looks good to the customer. Let's say each day you brought me a coffee (at cost), a pack of fags (at cost) and a can of coke (buy in bulk you could sell at retail cost and make some money there), still charge $1.50 delivery fee, but suddenly you're saving me three times as much hassle.