I actually thought about trying to trade for a Civic, but I've had this vehicle for a couple of years and know it's in good shape. I would hate to gain 8mpg but end up with a car with problems unseen at the time of purchase. I would love to trade on a new (or even a used) hybrid, but I can't really afford it right now. I have actually even looked into getting some sort of small electric vehicle like a moped or a scooter to use for commuting on the days I'm not transporting my daughter, but their ranges are too short. I could probably make it one way, but I would only be comfortable if I could get there and back on a charge.
That may be a far more in-depth response than you wanted, but, on the off-chance that you want even more,
I posted about this not long ago. I even linked to your tips page in my blog post!