Get a contract.
A contract is crucial to your success as a wedding photographer because of the fact that weddings are no jokes to handle and to solely be responsible of when it comes to the wedding photography side of things. You need to take this seriously and with care. You have to understand the fact that your clients really are banking on you to get the job done and to get it done the right way when it all comes down to it. You cannot just deal with things in an off handed kind of manner. You need to really treat this like a legitimate business transaction. And in the same way that all legitimate business transactions are being handled, a contract is a much needed requirement. As a wedding photographer, you need to make sure that you will be able to protect yourself from abuse or from any other instances of being sued or held responsible for things that are far beyond your control somewhere along the way. Make it a point to use the contract to really specify the mechanics of the wedding photography deal. As a wedding photographer, you should be very particular with the things that are being stipulated in your contract because in the same way that you can hold this up to your clients if push comes to shove, they will be able to hold you to it as well in the even that you do not hold up your end of the deal at the end of the day.
Anticipate fashion emergencies.
There will always be fashion emergencies during a wedding photography shoot and this is something that you need to go ahead and prepare for as a professional wedding photographer. You have to understand that issues like these can really impede or delay your tasks during the wedding photo shoot which is the main reason why you should get a kit together to help you provide quick fixes for your subjects when it all comes down to it. Come up with a small couch that has a small bottle of stain remover, a basic sewing kit, some sticky tape, and some extra pins somewhere along the way. These seem like basic everyday items when you think about it but in the event of an emergency, they are supplies that will really get to go ahead and save the day. Foresight and preparation will really get to serve you well in what you are trying to do as a wedding photographer.
Anticipate equipment failure.
Equipment failure can happen anywhere and to anyone and this is what you should watch out for as a professional wedding photographer. Bring extra or spare gear along with you as much as possible so that you will still be able to carry on and continue with the wedding photography shoot even if there are times wherein you might experience camera malfunctions or any other accidents and incidents that might pop up while you are in the middle of shooting a wedding for your clients. It may cost you a little something extra to begin with but as you progress in your career, it will be well worth the investment and the peace of mind that it will be able to afford you. You need to make sure that you get to cover your bases and that you get to responsibly prepare your spares whenever you have something to shoot.