Before we built this home, we had a small in-town lot, with no woods to explore in. We would set out on wild goose chases for things like rose hips, pine cones, and bittersweet. Always, always keep a good pair of clippers in your car. You never know what you are going to find.
I feel extra, extra lucky to live where we do now. We have been able to cut down Christmas trees from our own woods, take long walks, pick berries, and not worry about, um, trespassing, Ahem.
The kids and I went for one of walks the other day, and found some great things to bring inside, like acorns, baby branches, and a huge bunch of rose hips.
If you get the chance, take a nice long walk in the woods. Just don't forget to bring a basket, and some company. Happy decorating.