Drink expensive booze. Cheap stuff really does cause worse hangovers. You deserve better.
No. You can buy less expensive booze, get less drunk so it will cause less aftereffects. It is like
Drive Lamborghini, expensive cars are less likely to be involved in accidents Of course, because I would not be able to afford a much gas for Lambo V12 engine
Eat while you drink, preferably fatty foods
I prefer just to eat normal food in small quantity. If your stomach is full like aquarium, any foreign objects floating in stomach and tickling the walls can cause eruption.
Toward the end of the night, switch to drinking water.
I switch to even more bottles of beer.
When you get home, vomit if possible. Perform the "toothbrush tickle"
This is unnecessary and wasteful ritual, but it usually happens in taxi.
Right before bed, overdose on vitamin B12, vitamin C, and water
Right before bed I overdose on even more beer and vodka. Overdosing on water is unnecessary and can result in wet bed. Just have bottle of water or high-quality weak beer nearby if you need it.