Iāve done it every way and I still believe that the best and most time efficient is labeled buckets. You can cart out the grain itself and dole grain out of the back of the cart to each horseās stall, but the time you spend scooping and carrying that grain in the scoop to the horseās stall is similar to the time it takes to set up grain in labeled buckets. The major drawback to the cart method is no matter how neat you are there is spillage to and from the cart to the stall. Iām not a fan since I want to keep all grain under tight lock and key to prevent birds and resourceful rodents from making themselves at home.
Some barns have a system where horses have different colored buckets. In a 30 stall barn that can be difficult. I prefer to label black buckets and stack them in order of go - as you go down the aisle, just stack them back under the first bucket once theyāre dumped. So much of organization and coordination is just taking the āextraā .2 seconds to ensure the bucket goes back where it belongs (AKA, donāt throw the buckets in the aisle like I see some peeps do).
I always thought it was easiest to set up and stack buckets by which side of the aisle they were. Bucket pile one would be the left side, bucket pile two would be the right, etc.
The real loss of time comes from not having a dedicated person set up grain. Donāt swap this chore every day. Pick one person to do it, ideally while the other person is sweeping or filling up waters or whatever ā once that person has done it a few times they will be significantly faster than anyone who comes in and sets up occasionally. Part of it is memorization - if they memorized the feed chart theyāll have grain set up in five minutes or less.
As far as supplements go, have a shelf mounted above your grain bin. Organize that shelf based on whatever your grain set upās order of go is. Or, you can do it alphabetically ā but IMO, I think order-of-go is better. Require each boarder to make a weekās worth of supplements in advance. For storage, I like the small plastic pull-out drawers like what Smartpaks used to come in. I prefer twist-top supplement containers like the Ziplock twist-tops or old-time aluminum twist tins, since they are untwist and go - no fussing with a baggy or pulling at tabs to open, which is a PITA. The small (3-6oz) twist top tins that Amazon sells are perfect for this, because they stack well and take up no space.
Supplement Tins:
https://www.amazon.com/oz-Tins-Aluminum-Containers-Storage-Cosmetics/dp/B0989QWN2K/
Supplement Drawer Options - just make sure to measure drawer dimensions! You donāt want a drawer that can only hold 2-3 daysā worth of suppies:
https://www.amazon.com/Akro-Mils-10164-Plastic-Storage-Hardware/dp/B003TV3NL0/r?th=1
https://www.amazon.com/STERILITE-Organizer-Mini-Drawer-Pack/dp/B014E30YX6
In my own barn I just use the Sterilite containers that stack, and empty tins are thrown into a black grain bucket. I set up all my supplements about 2-3 weeks in advance if I can (besides the Pergolide), once the supplements run out I just pull the bucket and reset. Since I only have a few that get supplements itās easy work.