Toilet training Watermelon has been quite an exciting development/accomplishment for me, espesh since I was initially planning to do it next year after baby no. 2 arrives. It wasn’t until I read Jamie Glowacki’s “Oh Crap! Potty Training: Everything Modern Parents Need to Know to Do It Once and Do It Right” book (affiliate link) that I was convinced to start ASAP. According to her, the best window to potty train a kid is between 20-30 months. After 3, it gets “harder”. So counterintuitive to me because I thought the older the kid is, the easier she can understand. But Jamie explained that after 3, toddlers develop a stronger sense of self and may want to assert their individuality and thus resist your attempts to potty train them.