I use a container with seven columns (Sun to Sat) and four rows (Breakfast, Lunch, Dinner, Bedtime). I take my BP, cholesterol, B12, and aspirin at bedtime, so I use the container as a 28 day regimen. I reload it every 28 days. No missed or doubled doses, no opening individual pill bottles, no confusion (did I take my meds already).
That system works real well for me.
I tried the pill container thing with my mom, who was just starting to experience dementia at age 100, but she discovered it was fun to rearrange the pills in the cubes, to make pretty colored patterns and such, so we had to discontinue that.