Tipping???

How much do we tip?

DJ?
Photographer?
Limo ?
Coach Bus?

The hall set up a basic guideline for them, but we are confused with everyone else..is it a 20% like you normally would at a rest? or 2 -3 per person???

HELP MEE PLEASE!!

Do you tip for flowers?????

From what i've read and heard from friends:

DJ: $75 - $100 each
Photographer - $75 each
Limo - $30 - $50 each
Coach Bus - same as limo
Do you tip for flowers - $10 - $20 to the delivery guy but thats optional