The other morning my wife and I discussed our daughter’s potty training, particularly whether or not she should wear a different type of diaper while sleeping at night. My daughter turns five in a few weeks, and we have been potty training her – in some way or another – for nearly half her life at this point. It got me to wondering if potty training would ever end, especially since my wife and I will soon decide when to start training our two-year-old son. When my son is fully potty trained – including at night time – it is likely my wife, and I will have spent more than five years with potty training in its various phases. That is a long time and underscores the long-term fight that potty training can be.