Some parents enjoy when their children get a day off school, others hate it because they drive the parent crazy. I love having my boys at home when it's a curriculum day, so I try to make the most of it by doing these things.
I make the day sound as exciting as I can, I ask the boys what things they would like to do with me on their day off. They rattle off a few ideas, jot them down and then try and do as many as possible.
If you have more than 2 kids, allocate a few hours for each child in the day if you feel you're lacking in one on one time with your kids. If I ever do this, I write up on a big sheet of paper who gets what time during the day and it means the other two kids know not to disturb for example:
Spending time with your kids doesn't have to include spending money on your kids. Choose a few fun activities you can do for free such as going to the park, playing football outside, playing dress ups or games like hide and seek or tag.
Use this time to sit and down and watch a film your child has wanted to watch with you. Weekend evenings can get quite tiring, so watching a movie early in the day will be better for both of you.
Also use this time to get messy and do fun crafty activities, at least you'll have a lot of time to clean up afterwards.
Last curriculum day the boys got out the "Gelli Bath" and we put it in a big round pool and the boys had a fun time with it, and so did I. Luckily we had 2 hours to clean it off us and the pool before hubby got home.
Days off with children don't need to be stressful at all, the only time it will be hard and they'll drive you nuts is if you leave them to their own devices (literally) and they begin to get bored and fight with each other.
Alone time is important as well, you don't have to be joined at the hip for the whole day.