My letter to the parents at the first sign of cold weather states a reminder for mitts on a string through the coat, hat, rain or snow boots, etc. and then THIS: 'It isn't fair to all of us if we can't go outside because one child is not prepared'.

I think that puts the fear into them because they know I do an extensive verbal update about our day at pickup time. If I have to say we couldn't go outside because one child didn't have hats and mitts and proper boots or anything similar, wouldn't that be embarrassing for the unprepared parents?