Building my own wooden swing set...ideas?

I have looked at wooden outdoor play sets and find them quite flimsy looking for the price. My handy-man hubby can build one I am sure but we need some ideas from those who may have done this before. Space is huge where we want to build this, want it to be for good sized kids as well as small. We want to... show more I have looked at wooden outdoor play sets and find them quite flimsy looking for the price. My handy-man hubby can build one I am sure but we need some ideas from those who may have done this before. Space is huge where we want to build this, want it to be for good sized kids as well as small. We want to completely avoid any kits as they are not what we are going to do....thanks for the help!