I am allergic to everything so Ive found rice protein powder to be a great asset. I try to make jerky but when eating 1.5 grams of protein a day it can sometimes be hard to keep up and rice protein powder is great when Im hungry, short on time and out of jerky (its also cheap/hypoallergenic). Vitacost and Trueprotein.com are cheap sources
More of a gray area but I recently started juicing vegetables and keeping it in big jars in the fridge. I know we are only supposed to "eat our food" but this extra amount of veggies really gives me a boost in energy.
Also for those with sinus issues quercetin and stinging nettle really stop hay fever. My buddy has taken allergy shots for years but was able to skip them this year by supplementing with these two items. They definitely help me as well.
Supplementing with bilberry has also helped to restore my night vision and ease computer eye fatigue.
Any other good tips out there that we might not see on Paleo blogs?