Turn old newspaper into seedling pots. They can be planted directly into the ground as the paper will eventually biodegrade. You can form them by wrapping the paper around a jamjar or similar, or there are 'devices' that can be bought to make the pots. I think using the gardening supplement that comes with the weekend papers would be quite a nice touch :D
Milk Jug Seed Starters: This simple technique was developed for seeds that need to spend a winter outside before they will germinate, but it’s also a great method to start garden seeds in late winter if you don’t have indoor lights or a cold frame.
This is genius because it's free because you're going to use the eggs anyways, you just break the shells a little when you transplant and it doesn't hurt the roots, AND it provides extra calcium for the plants after it is transplanted. AWESOME.