Here’s a trick my partner and I use when our son has a cold: We put a pad and pen in the bathroom, near the medicine drawer, and every time one of us gives him any medicine, we write down the dosage and time. This minimizes the risk of double doses. It’s especially useful when he’s on several different medications, and when the two of us alternate who gets up in the middle of the night with him. No one likes to be shaken awake to answer the question, “Honey, did you give him any Tylenol before bed?”