My 9.5yo son constantly forgets to take his ADD medication. Seeking ideas on how to help him remember.

My son has been on medication for his ADD diagnosis for 4 years. He'll be 10 in August, and still doesn't remember to take his pill before school every day. He splits time evenly between my house and his dad's house. I take him to school when he's at my house, so I'm able to give him a verbal reminder. When he's at his dad's house, he has no adult supervision in the morning, so it's on him to remember to take it. I even put the pills into those M-F pill containers (one for my house, one for dad's house). A few weeks ago, his teacher messaged me and said he was staring out the window during a math benchmark test. He'd been working on it for nearly 2 hours and had only done 12 problems out of 30. She and I both knew it was because he forgot his pill at dad's house. Today he has End-of-Grade standardized testing (aka--the biggest test of the year) and his teacher called me at 7:40 and said my son told her he forgot his pill. I told him Tuesday to remember it. I dropped off a fresh container of pills yesterday evening and had his older brother remind him to take his pill. I texted his dad last night and asked him to remind him. I immediately went to the school to give him his pill. He told me "I put it where I would see it, but I still forgot to take it". I seriously don't know what else I can do to make sure the pill isn't forgotten at dad's house. I've considered having him take it at school, but it's an extended release medicine and wouldn't 'kick in' until he'd been at school for an hour. It's kind of a catch-22 because he's extremely forgetful when he's not medicated (can't remember more than a 2-step instruction like "go brush your teeth and then put on your socks"), and he can't be medicated without remembering to take the pill!Does anyone have any suggestions for helping him remember to take his pill?Note: Please, no bashing for giving my son medication. It's been a miracle for our entire family. :)TL;DR--My son forgets to take his ADD medication when he's at his dad's house and I'd like suggestions on ways to help him remember when there's no adult supervision. via /r/Parenting http://ift.tt/2rJ85iP