Just a thought for all you guys out there delivering goods, particularly to the UK - have you ever thought of making a virtue of the delivery service(s) you use?
I don't exactly live in the stix, but some of the courier services are a pita for us working families. Some of them try to deliver once, and if we are not in I have to go best part of 20 miles to collect goods from some poxy potting shed, served by a surly yoof who has problems stringing two words together.
No such problems with Royal Mail who can leave items at the local PO for collection.
So, how about looking at it from the customer's point of view, and making delivery services more user friendly for the end customer, and not just focussing on cheap prices for the vendor
Just a thought, it could be your USP.