Assuming you are american so this might nod be all of use to you.
European weddings photography usually consists of 3 parts:
- pre (post) ceremony pictures of bride and groom at some nice place like garden or old castle
- kit: outside/inside lens, flash (if inside), golden reflector ( if outside, to give bride nice shine
- pictures : "artistic crap" of just bride and groom, it is good to know some poses so that you can easily navigate them, and it is usually well worth to have female companion ( to hold that reflector and also because women usually have "more feminine eye" for composition
- ceremony pictures (usually in church) + pictures of family just after ceremony.
- kit: inside lens, flash, outside lens afterwards
- pictures: bride, groom, priest , family afterwards ( make sure you spoke to bride before the wedding and at least roughly know who does she wish to have on pictuers - well worth to go through family albums to know the faces in advance) - with family pictures be bossy telling them how and where to stand (choose your background ) - nobody else will organize those people for you
this is probably where you make your money on extra pictures - get the bride and groom and move with them all around the place and take pictures of small groups ( 4-5 people ) whilst sitting/talking or dancing
Cut the "artistic crap" like nice door arch or altair in church and concentrate on people in few years time nobody will care about flowers, but everybody will like to have a look at picture of grammy because this was her last wedding. ( and don't take me too seriousy, I'm just an amateur who thought a bit about it )