This brings back memories.
7 out of 10 for me (sort of). Aurora slot cars, HO trains not Lionel, Gilbert chemistry set, erector set, balsa wood planes ( I forgot the brand name. When I was about 9 my father & I built a bi-plane with a 3-foot wingspan. A few years later I built a Spitfire. After a while my brother & I set it on fire and flew it out our bedroom window), Lincoln Logs, and last but not least the Girder & Panel. I had several - the basic small building, a larger building set that had a working conveyor belt and elevator, bridge & turnpike, the residential set, hydrodynamic, and skyrail.
I also had the red bricks and the white "cmu" blocks in the cardboard tube. Mike- did your cmu bricks come with green and red doors & windows.
My HO trains really annoyed my father. I hardly ran them. He could never understand that I enjoyed rebuilding my layout every few days far more than running the trains.