I knew from the very first wedding I shot, that it's all about the people.
The little champies running around under people's legs, the Grandpas in wheelchairs crying at the sight of their granddaughter in her wedding dress, the big bunch of crazy mates all thrilled to see their friends standing up in front of everyone to declare their love. This is the glorious magic that I love.
I've been doing it for a few years now, so I'm full of advice if you need it, but I think the best advice is to not sweat the small stuff.
Get a team around you who know what they are doing, and let them do their magic, so you can have a sweet time with your mates.