There are many ways to reduce damage from grazing deer:
Fencing: this is usually the first line. The fences have to be fairly tall, but not necessarily all that sturdy. Often times using less visible fencing is the most effective, as the deer run into it and get startled rather than approaching cautiously. Remember, deer eyesight is focused more to the sides and they rely heavily on scent and hearing, so this isn't as ridiculous as it seems. Fencing really depends on the property, neighborhood, what you are willing to put into it, etc.
Choose plants accordingly: Many native plants are grazing tolerant. They may not be quite as showy as some imports, but that doesn't matter if the import is eaten down to the root. Some plants are even deer repellent. Look online, check your local university extension and ask at your local nursery for what plants grow well in your climate. Start thinking in the Alium family... Onions, garlic, leeks, chives, shallots etc should be left alone by deer and some actually have quite showy flowers. You can even use your onions and garlic grown in the garden to make a deer repellent hot sauce.
Use chemical deterrents. Many chemicals and substance can be safely sprayed on and around plants that deter deer: scented soap (irish spring, Murphy's oils soap and others) dissolved in water frighten deer because they smell like people, crushed chili peppers or capsacin extract, onion or garlic make the plants unpalatable. Predator urine: there are commercial preparations of the urine of many predators. Canids such as coyote, wolf of fox work the best, or alternatively just get a dog. Certain fertilizers deter deer including bone and blood meal. Milorganite should work wonders, but don't use it on food crops just to be safe.
Noise: Although deer eventually get used to noises if they find that they do not actually pose a threat, some proximity sensing devices work for a while to deter deer. Motion detecting lights would also help. Alternatively, get a dog. preferably a large dog that doesn't constantly yip but gives out a hearty bark when strangers approach. Most livestock and herding breeds would fit the bill nicely. The dog doesn't have to be out in the yard all the time, just long enough to make the deer wary. Although, you would have to want the dog for all the other reasons and understand the effort required.
Oh, and to get back to topic, my answer was "Do plants count?" And yeah, it's possible to get quite geeky on gardening. Especially if it crosses over to another hobby like making salsa/hot sauce, home brewing, photography or web design.
