I do the same as sunny days. I put them all in the stroller for a morning walk and use it as my exercise because I can go faster and then play outside in the afternoon if there is time. Today I only had 2 though so we played in the backyard. Thankfully it wasn't too muddy back there yet because it wasn't warm enough yet.

I would ask parents to clean shoes before coming in as well. Do you have one of those shoe cleaning statue things? Do you know what I mean lol