How fast they grow

This morning Lily sat on the potty were she accomplished both of her goals at hand. We hgave been potty training for a couple weeks now, and have been pretty successful.
Then, after washing hands of course, we brushed our teeth and did our hair. Lily said she wanted 2 ponytails in her hair, and wanted her earrings on (she has a pair of clip-ons). It hit me how quickly she is growing up. I of course then got all sentimental and started smooching on her and taking tons of snapshots. I am always the one taking the pics so decided to flip the camera on us to get some of the two of us. Need to do the same with Aubs. How do they grow so fast???