One thing moms are probably sick and tired of is running around in shops buying supplies for the school year. When the kids return, take some time each day to get outside for physical activity or just a plain old walk. Not only will you feel better, but that little bit of exercise each day will help you sleep better, too.
On that whole sleep thing, now that the kids are out during the day, the house should be much quieter. Take a nap during the day to recharge your batteries so you are ready for pick-up time.
Your gal pals are likely in the same situation as you and looking to reconnect. With all the spare time in the day, why not take some time for each other? The kids are seeing their friends again at school, so why can’t you too?