I'm in my 70's and hope to have several more years. I'll keep going as long as I can. Many years ago I put auto waterers in all of the coops. One malfunctioned and I had a flooded coop so then I put all of the waterers outside next to the pop doors. I left the water pipes inside the coops and had to cut the pipes so I could put them outside but it has worked out well.@cmom - Whoa! That's a lot of birds!! I hope you have them for many more years. They do bring a lot of joy.
I have downsized my coop. I've gone from 3 10x10 coops w/10x20 runs down to just one coop/run. We got a 6x8 storage shed back in April, and converted it into a chicken coop. We added an 8x20 covered run. I have 5 chickens left from last year, and they seem to really like it. Since it is smaller, I've added a poop board in the coop. I fill it with sweet pdz and clean it every morning like a litter box. I have pine shavings on the floor and this fall I'll be putting leaves out in the run.
My garden has done really well this year. I have 6 cinder block raised beds and I've been canning like crazy out of them. It's starting to slow down a bit with the hot weather we have.
Some things I use to help me with gardening or chicken raising: For my chickens, I water them with a 5 gallon bucket with horizontal nipples. I usually refill it once a week to keep the water fresh, but it could go for 2 weeks or longer with just 5 birds. For their feed, I use a clear tote that holds 50 lbs of feed. Taking out the daily feeding & watering really helps. I still give them daily treats, greens out of the garden or kitchen scraps. Not having to fill a dirty flip waterer every day really helps. Sometimes my hands don't work so well and they are hard to unscrew & carry when full.
For the garden, I have a couple of wagons. A little red wagon that was my granddaughters and a garden wagon. That thing is so easy to pull. I love it! I just wish mine had sides. I also have a couple of wheelbarrows, one has the double wheels. It's a little harder to turn, but much harder to tip over. We also have a side x side that I use A LOT. I use it to haul off stuff or bring in the feed from the suv. We have a little trailer that attaches to it when I need to haul something bigger that won't fit in the back.
It gets a little harder each year to do things, so I make adjustments all the time.