Vampires
Relevant House rulings
-For most vampires (those without the correct traits), food/drink of all kind does not taste good. Water is totally drinkable and their undead bodies are even able to process it efficiently to an extent. But not so for any other drinks. To remedy this most vampires mix their drinks with about 50% blood. Those that actually bother to eat food have a tendency to cover food with gravy/sauces that are mixed with blood.
-Blood bonds. According to the rules, to blood bond someone fully, all a vampire has to do is get them to drink their blood three times. I find this to be poorly written and very abusive by players and against players. Instead my house rule is as follows. To properly form a blood bond, you must concentrate the blood inside the target. To fully bond someone, they must drink your blood on three different nights in a row. To bond them to the second level, they need to drink your blood two nights in a row. To bond them to the first level, they merely need to taste your blood.
-Drinking Blood (consider this a handy chart.)
Society
Major Camarilla Controlled Cities (currently)
Major Sabbat Controlled Cities
Cities currently under heavy contest
Cities not under any Kindred control
General Rule Clarification
Hunting via Seduction