Until I started planning our wedding properly (more than just ogling pretty dresses and centrepieces) I didn't realise truly how much work would be involved, and all the decisions to be made and kept track of.
I swear, I have never been so organised... in. my. life. Through planning our wedding my general organisational skills have improved significantly (one of the unexpected bonuses of planning your own wedding.)
I used a lot of new gadgets and tools to accomplish this, and I cannot rave about them enough.