Mine is a cure-by-prevention method: drink a glass of water for every drink you drink. You'll still be drunk, you'll still have to pee even if you hadn't drank the water, and you'll feel better the next day.
Second step: before bed, two ibuprofen and a vitamin B-12 tablet (this also works the next day) with a HUGE glass of water. Finish the water every time, no exceptions. Stay awake until you pee (this is a crucial step!!
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Third step: don't drink if you can't get more sleep than you normally would. If you naturally wake up early, just lay in bed with your eyes closed until you get the maximum amount of rest you can afford before beginning your day.
The first step addresses the headaches the next day from dehydration. The second step also addresses the headaches, but the Vitamin B-12 replaces enzymes from the liver that are expelled from drinking. The third step addresses the natural exhaustion of the body from it's over-exertion from breaking down the toxins in alcohol.
There IS NO CURE. But there are methods to mitigate the effects.