My husband wanted to do a modified triathlon (8k paddle, 5k run and 11k ride). I reluctantly agreed, reminding him that he would need to dedicate an enormous amount of time to training, which might have been a breeze last year, but this year we have a seven-month-old baby.

A little background for you: My husband, Zac, works nights and weekends and I work weekdays. This time last year our biggest concern was who would be home to walk and feed the dog. This year we can’t seem to leave the house without one of us having spit-up or dried...