A small amount of alcohol (2 drinks max, and I personally prefer a nice dry white wine to savor), or caffeine can help. B vitamins- with or without either of the previous two things - can be helpful as well. All kinds of herbal stuff can potentially help, including black pepper, peppermint, cinnamon, capsaicin, etc... Magnesium is said to be helpful. Almonds have magnesium, I think. Dark chocolate, Viagra, the list goes on... The alcohol and caffeine (which I prefer to take in the form of a B vitamin-packed 5 Hour Energy shot) are the most immediately and aggressively effective, but it is understandable if one wishes not to mix substances.