It's a nice gift to give the groom his own little cake. Have the cake designer make it resemble his favorite hobbies, like carpentry or football. If it's a surprise it will be even more meaningful to him! Just make sure that the cake itself tastes good - a wedding cake that looks gorgeous but tastes bad will not leave a good memory.
If you are having an outdoor wedding, check your wind speeds for that day. A windy day can ruin an outdoor wedding if not planned for. If it is going to be windy, avoid hairstyles that will be greatly affected by wind. You should also keep in mind that some tents are not designed to handle very windy conditions.
Whether or not to invite children to your wedding is a delicate choice to have to make. You don't want to offend your guests by saying they must come childless, or forcing them to find a babysitter. At the same time, you don't want kids tearing around your reception or disrupting the ceremony. If you want to have kids there, give them something else to do or another room to play in.
Try to avoid being sick for your wedding! Up your intake of Vitamin C and eat only healthy items in the weeks leading up to the big day. Stay away from any foods that may cause stomach upset or gas as the last thing you want to do when you're standing at the front of the ceremony is be flatulent!