All I know is, its good to have a daily routine.... wake up, chores, eat breakfast, go to the park, run around, have lunch, nap... do crafts, run errands etc.
Anything that is your/their routine.
Then that way the kids aren't just 'bored' or getting on each other's nerves...
I know, things cost so much money... and if taking them places each day it really adds up.
I have that problem too. My daughter is home for 2 weeks before her summer fun program starts and then I also have a 3.5 year old home too. If I don't delineate what we are doing each day... they get in each other's hairs. Then not fun for me.
Or go on hikes... parks, the library, bookstore, do a picnic outdoors, have water play in your yard, do gardening, collect rocks then paint them...
My kids like to collect things, so we often do that too, outside, then make something with the stuff they collect. I also have them help me clean the house.
I know though, its not easy always coming up with stuff for the kids to do. Oh, and we have 'quiet time' too... in the afternoons and nap. Which is for me too.
all the best,
Susan