How I cut our diaper bills in half

I have 3 children. The oldest is 4 years old and still wets the bed at night. The second just turned 3 and still wets the bed at night and at nap time. The youngest is 1, far from potty training. As you can imagine, we go through a lot of diapers and pull ups here. And after 4 years of continuous diaper changes, I am getting really sick of them. Last month, I realized our average diaper expenses were $80 per month! Ridiculous. So I took some steps to improve that.
First, the eldest, Sophia. I started taking her to the bathroom before midnight. She was always in a dead sleep, so sometimes she went, sometimes she did nothing. It took weeks to see results. But finally, after doing it every night for a month, she has consistently peed in the middle of the night, and started going on her own as soon as she wakes up. Dry pull up most nights saves big bucks!
Next, Danny. He is too comfortable wetting his pull-ups, so I started putting cloth diapers on him at nap time. They were technically purchased for the baby, but they just fit the 3 year old, and we call them big boy pants so he gets excited about them. He likes choosing his design from the pile. Of course, at first, it made no difference, and he was creating nasty messes in his cloth diaper which were an extra pain to clean up. However, after several weeks, he is starting to show some control. He makes a greater effort to go potty before his nap now. And today for the first time he actually knocked on his door and said, "Mommy, I have to go poop!" He did, and stayed clean the rest of his nap! Using gummy fruit snacks as a reward seems to be a big incentive for him too. Very proud of him cutting his pull-up consumption in half.
Finally, the youngest. He is too young for potty training, so the only money saving option is cloth diapers. I bought some last year second- hand from a mom who sewed them herself. I started using them when the baby was 6 months old, but always used disposable at night, and went though periods of moving and laziness that got us off the cloth diaper routine. Lately, the baby only goes through 3 disposable diapers a day, so it hardly seemed worth the effort to do cloth for the daytime. However, now that big brother is wearing them, I find more reason to use them on the baby. I'm going to have to do the laundry anyway, so what's a few more? I have been using about 1 cloth a day on him, which cuts his diaper consumption by a third.
So Sophie went from 1 a day to 1 every few days, Danny went from 2 to 1, and Alex went from 3 to 2. Our diaper bill is now closer to $40 per month. Very exciting! Not bad for a month's work, and honestly not that much effort from me! The moral of the story is: kids' routines are always changing, and it's ok to try something new repeatedly, because it might take a few weeks before you see results. But it is always worth a try!