One of the member/posters has this line in her signature. It's kind of sappy, but also very nice:
Living on Earth is expensive, but it does include a free trip around the sun
On a related (bird) note, I checked out a bird-call CD at the library yesterday, A Field Guide to Bird Songs: Eastern and Central North America (Peterson Field Guides). The kids got quite laugh out of it as we drove home from the library. When you are not "in the field" but hear only the call over the car speakers, some sound quite startling, and some are just plain funny. Overall the effect is soothing. M asked me to put in the "Bird CD" last night and she fell asleep instantly.