We have used an alternative service, wegoshop.com 6 times and been very pleased with their service. Wegoshop does not mark each item up like Garden Grocer does.
They do not have a minimum order amount, but their delivery fee is a little higher. I think the cost of these 2 is comparable.
What I like about wegoshop is that I create my own list of items I want, I hate shopping "virtual aisles" like on Garden Grocer.
We order breakfast items, fruit, juice, soda, water, beer, wine, cheese and crackers and snacks. I believe we save the delivery fee just on the savings on the case of water.
Good Luck