We have 3 kids. I try to take 1 or 2 kids at a time places often to give them some special memories and alone time.
For instance
I took my oldest kid to see the Falcon Heavy launch
I took kids 1 and 2 to see the Space X Demo 1 launch
I have taken every possible combo of kids to my parents house (a farm with a zillion things to do) for a weekend.
I have taken every possible combo camping with scouts or on overnight trips. Last weekend was my middle guy, this weekend were kids 2&3, next weekend it's kid #1. Yeah, it's a busy time.
I took my middle guy to a big farm/ag trade show
I'll also just grab one at random for a "date night" or to go do something.
Most of the time, I take all 3, but my dad was pretty good at singling us all out for 1:1 time, and I think it's worth it. It can be tricky, because you can never tell if Kid A will mope because Kid B isn't there, etc.