[quote=@jasonwolf]
[@AdobeFlash]sun burns. Holy water burns. Crosses burns. Crucifixes extra burns. Hot cross buns delicious, but might burn if they are too hot. Holy ground prevents you from going on it. You must be let into places by someone else (this is actually a thing in vamp lore). You are compelled (like ocd levels) to count small things scattered on thr ground.

You are stronger than even top athletes and faster by far. You have a bat form that can travel in the sun.

I'll probably think of more later.
[/quote]

I have some ideas, and I just thought I'll spout them out. I was thinking that crosses shouldn't be the only religious item that can burn a vampire, every religious item should be able to burn a vampire. As long as the person holding it has faith that it can. If the holder's faith in the, for example, cross wavers. Then the cross is just two sticks held together to a vampire. Same goes for holy places like churches or mosques. As long as someone inside believes the structure can protect them, it instantly becomes dangerous for a vampire to walk in. However hallowed-ground would be able to stop a vampire easily, whether someone has faith in it or not, and if a vampire is strong enough to walk on the hallowed-ground, his powers should be damped dramatically. 
Speaking of powers, ever noticed how vampires are constantly romanticised? Well, people can't help it, vampires have an aura around them that can easily control and seduce anyone near them, charms and wards can help battle this effect though. And as for the not being able to enter a home without permission thing, I think maybe it should be changed so that a vampire can't enter a home without permission through a [i]door[/i]. Windows, or holes in the walls allow a vampire to come in. Furthermore, vampires are alot more durable and can survive extreme conditions, given that they can survive in extreme trauma and not die of shock. 
How to kill vampires should also be a detail that is discussed. First of all, garlic won't kill or maim vampires, [i]some[/i] vampires can be allergic, but other than that small minority, vampires can't be killed by feeding them chicken and garlic pizza. Secondly, since vampires are superhuman and can shake off attacks like stab wounds or bullets, attacks directed at the heart or chest are like a vampire's weak point. Attacking the chest can easily knock them back, daze them, or kill them. Decapitation is also an instant kill. But! But vampires can be revived, by either sacrificing another vampire, or with a complicated ritual that can raise the dead. However, vampires brought back by the second option will only have a faint idea of who they were and would also be easily controlled by the caster who raised them. Ever heard of a vampire butler? Now you know why they're so obedient. 
Well, that's a few of my ideas. Hope this helps!