the only thing i can add is that coming from a home were money is always an issue (especially cause whenever we wanna go anywhere with 10 people the costs can fly thru the roof) while i always wanted to be aware of what we could or couldnt afford i usually didnt want to know that we were "only do this cause it's free".

that said there were always places we found we could go for free or cheap asa group (like a science center or planetarium) because very often these places will have a deal that says like if u come before 10:00 AM it's free admission. keep a look out for deals like that.