Disclaimer: Joss Whedon owns BtVS and JK Rowling owns Harry Potter
1 - Sleep
Being a slayer isn't exactly conducive to sleep, well a slayer that has a life outside of
what goes bump.
Apparently using a spell would lead to an addiction, not to the magic, as a wand user
that won't happen to me. An addiction to the feeling a spell would give; an addicted
slayer would not be a good thing.
So, magic's out, a decent nights sleep is out; I don't know what to try any more,
studying doesn't even help.
You'd think with this many slayers running about we'd have a shift system or
something, wouldn't you? Not a chance!