Since it got cold and snowy, I’ve been walking to work and wearing snow pants to deal with the weather.  Today, for the first time that I remember, I apparently got the snow pants off the hook by the front door and put them with my coat to get ready and had no memory of doing it.

This is a habitual sequence I’ve been doing since it got cold and apparently it’s now automated enough that I can do it without leaving an explicit memory trace.  How many days ago did the temperature drop and I start this habit?  Just about 50.  That was also just about how many days of biking it took for me to lock the bike with no memory of it later.

50 times through a sequence to get to automaticity.  Seems like a perfectly reasonable hypothesis.