Lots of standing.
During this pregnancy, my ankles and feet have stayed REALLY close to regular size. Surprisingly.
Then this week, they decided to start to swell a bit here and there. Then last night, post-concert they looked like this:
Please notice how my knees are "normal". Then my ankles are like twice the size. That is exactly what it looked like. My shoes BARELY came off. With a bit of Pam. And a bit of tugging.