Replacement Pod for 31-Day Monthly Pill Organizer Pods

I have tried 4 of these boxes because the style is what I was looking for, but every one of them has had problems with the dates rubbing off with barely any use, and the individual boxes don't stay closed if you remove them for travel, thus defeating the purpose. You end up with a jumble of random pills in your purse or your pocket. If they were selling a full set of replacements for $2, I'd consider it, but $2 each eds up costing more than the box itself.