I did the muslin under the head of baby, the towel on the changing mat and the hot water bottle in bed before laying the baby down. All fab tips.
Never knew about the baby vest necks until DS was a toddler 
While cleaning teeth we sing a song to the tune of row, row,row your boat.
Brush, brush brush your teeth
Brush the top and bottom
Brush them very carefully so they don't go rotten.
6 times is 2 minutes brushing, or there about.
Never gets old ......... so far.