Creating a list of things that need to be handled before a wedding can go through smoothly once all has been said and is now out of the way is going to show you that there is a massive number of logistical issues that need to be ironed out. You probably feel like you are ahead of everything but in spite of the fact that this is the case there will inevitably be something or the other that you miss out on and when this happens you need to know what to do to fix the issue that has ended up occurring.
For example, you need straws that people can use to drink things at the wedding. In your pursuit of an environmentally friendly solution for weddings in St Louis, you might have decided to go for metal straws rather than plastic ones. While your sentiment is certainly admirable, metal straws are actually the worst option that you could have ever ended up going for. This option is terrible due to the reason that metal transfers a lot of heat, which means that if someone was planning on drinking a hot drink through the straw then they might not realize how hot the straw has become which means that they would end up burning their lips.
This would be a major injury that would be quite embarrassing for the bride and groom. You can figure out how you save the world later, but for now you should just avoid using metal straws. They are just not convenient and the process of making them is quite bad for the environment which ruins any environmentally friendly potential that they might have had otherwise.