I also got the rain barrel set up, but there's been no rain (!) for about 3 weeks now. I'm looking forward to seeing how well it works and how much rain I'll be able to collect. It's set up by the back of the house under the gutter that only drains a small part of the roof so I definitely won't be overwhelmed by too much water.
I seem to be really bad at taking 'before' photos. I'll try to remember that for the next round.