Boy am I being a slacker. Another interjection:
Lately, I've been overloading on Omega-3's, because I don't think I was getting enough before. It's difficult to get as a vegan, so many soy products are fortified. Take those out of your diet and you're not left with many options. My suggestions include flax oil, milled flax seed, walnuts, and nutrition bars. I sneak milled flax seed into my cereal, sanwiches, even entrees. The taste is barely there, its low-fat and inexpensive. With 3-4 tablespoons of milled flax seed everyday, I am ingesting more than the recommended amount of around 1.5g (wikipedia). I think this is a good idea for the following reasons:
Omega-3's play a significant role in brain function because they are a major component of the brain--8 percent!--mostly in myelin sheaths. Recent research suggests that an increased intake of Omega-3's can help with depression, anxiety, and other mental issues like autism. (wikipedia)
Omega-3's are potentially beneficial for so many other conditions as well--circulation, cholesterol, etc.
I can tell the difference already in the condition of my hair and skin. My hair started behaving so much better--silky soft and not frizzy--just over a week after I started supplementation. Also, I have less dry skin, though this could be the weather. Still, I am encouraged by the obvious physical benefits.
Getting Omega-3's from plant sources is much safer than from animal products, for reasons all good vegans should be familiar with (growth hormones, mercury...). I would recommend adding a little flax seed to your diet, even if you aren't veg. Only the milled stuff though, as the whole seeds will not digest.