Which side does the bride go on in group shots?
How are you going to pose all 8 of the wedding party, and all 20 in the groom's extended family?
What shot list are you working from?
What time should you start?
How do you use the ambient light, or your flash to retain the detail in the bust area, without it being super bright?
What are the 10 most important shots at the reception?
What are the church rules for flash photography?
Where should you be when the bride and her dad enter on the processional?
What is your payment policy?
Do you have a credit card machine?
Do you have an established business with a name that is registered, and tax forms on file with the state?
Do you have a CPA? Or, do you need one?
What are you going to do when the brides mom tells you she doesn't want to be in any photos with the brides dad (her ex) but the bride wants her in the photos?
What are you going to do when the couple file for divorce a couple weeks after the wedding, and want all their money back?
If you can't answer at least half of these questions, you need to learn them prior to shooting a paying job. You also need:
1. backup camera
2. wide angle lens.
3. Telephoto lens.
4. Back up flash, and any cords your use (battery/pc/triggering/etc)
5. Contract
6. Model releases
7. liability insurance
8. You also need the mid-set that if you are not making at least $800 per wedding in one year, that you need to quit.
9. do you have the "workflow" worked out? What happens after you get home with the images? DON"T just put them on a CD and give them to the client. If they go to the local drug store and get crappy prints, your name and reputation will be associated with those images.You can kill your business in short order.
10 Do you have a photo editing software that you are proficient at using? How about Adobe Lightroom? That is what most wedding photographers use.
Call a local wedding photographer and let them know that you want to learn from them, and that you will assist them for free. You will do yourself and lots of brides a huge service.