Back in my diaper bag-toting days, I swore by my backpack. It came in even more handy once I started lugging a laptop with me everywhere I went. If I were to do it all over, I’d go for a well-made computer bag and stash the baby paraphernalia inside. Today only, this SwissGear Computer Backpack is a steal at $29.99 (75% off the usual price of $120). The water bottle pocket would work well for a baby bottle or spill-proof cup, and there are multiple nooks and crannies for everything else.