I’m trying to adopt the habit of standing on one foot at a time while I brush my teeth. Because I use a toothbrush that beeps at 30-second intervals for two minutes (to encourage thorough brushing, of course), at first I switched from one foot to the other at the beeps—thirty seconds left, thirty seconds right, and so forth. Now I sometimes stand on one foot for a full minute before switching to the other. I think my sense of balance is getting stronger! This new practice gro