Boundaries are amazingly important. But so is having fun and being joyful with your kids. Say "yes" as often as you can.
Say "yes" to being silly, to ice cream for dinner, to dance-offs, to leaving the kids with a babysitter so you can go out with your friends. Say "yes" to going on day trips together, to finding fairy doors, to making play dough, to playing soccer in the yard in the summer and the basement in the winter. Say "yes" to putting your toes in the sand, to running through the sprinkler, to catching lightning bugs.
Say "yes" to things that feed your spirit and nourish you, alone and with your kids.
You spend so much time making sure they have everything they need. Spend some time making sure you all do the things you want, too.
"Our lives shall not be sweated from birth until life closes;
Hearts starve as well as bodies; give us bread, but give us roses!"