Have you seen this yet? I Like Giving? It's right up our alley, you guys. I'm not intelligent enough to embed it here (or spell intelligent without auto correct), but trust me and check out this video, I Like Adoption.
The whole concept of the I Like Giving movement is to encourage generosity as a way of life. You can try if for 3 days (generous living, that is) by joining in on the website. They send you prompts to try each day to get you started. You guys are already pretty darn generous, but it's fun and neat to do with the kiddos. You can even order some free cards to pass out when you do a generous deed. Give it a go.