Sara over at 2000 Dollar Wedding had all sorts of fun and affordable plans for her big day. I'm planning to use her idea about creating a flickr group for your guests to submit photos after the wedding.
Personally, I feel that there's a wee bit too much photography at some weddings. The guests are excited and want photos of their own, but it can turn into paparazzi mania.
Rob and I considered asking our guests to refrain during the ceremony. It made us come across as huge bores for something that didn't really matter, so we ditched the idea. At least with the flickr pool, we can turn all those flashes into a fun album!