All because I forgot my jacket on Saturday

10 minutes cycling to Oxford station and locking my bike
5 minutes buying a ticket and crossing the bridge
16 minutes on the train to Banbury
12 minutes getting from the station to the boat, unlocking it, getting my jacket, locking up and getting back to the station
36 minutes waiting for the train
23 minutes on the train to Oxford
12 minutes unlocking my bike and getting back home.