Starting a new bed with squash
I guess you could say I'm a lazy gardener as I will always choose the easier of effective methods. So when I increase my garden I use cardboard, mostly because my husband can always get some from work, it keeps it out of a land fill and all I have to do if rip off the tape and labels. When I do this I don't have the patience to wait a whole year before I can use it, so I dump mounds of dirt about every 5 feet and plant squash. When the soil is the right mix it feeds the squash enough and breaks down the cardboard under it pretty quick.
I live in a pretty high wind zone so I have to use some additional weights until the squash vines take over. Straw is great too because it will all stay together for the next season when I can really work the soil. So this year we get some extra edible squash plus a bunch of carving pumpkins just for fun (and seeds, yum)