D.N.
You could buy one of those black boxes that you use for documents that lock with a key. They sell them almost anywhere. I bought one at Menards for less than $20 and it fits easily on a shelf or under my bed. I keep my medications, including Tylenol and any kind of cold meds, on the top shelf in a kitchen cabinet. Of course, this depends on how your cabinets are placed. And I know what you mean about children getting into everything. I have an 18 month old and don't yet know if I will be finding a new place for meds sooner than later. BTW the worst place to keep any medications is in the bathroom. The humidity can change the effectiveness.