First of all, don't ever wear flip flops to Yellowstone. Dustin and I both did and our feet hurt SO bad now.
So um, yes. We went to Yellowstone for the day! It was about 1 1/2 hours away and was well worth the drive. We saw all the geisers and old lodges and packed a lunch. It was pretty hot, so we wore lots of sunscreen and I was the lucky one with the big purse to carry all the bottles of water.