Things with wheels!

So I am officially overwhelmed with things in my house that have wheels. Anyone with a boy will know exactly what I am talking about and cringe when their son says they want a new train, car, truck, etc. I have cleaned my basement and my son's room and have filled about ten (yes ten) containers with different wheeled items. Now of course there are certain ones that go with certain tracks and he has names for special ones (I am sure moms of girls can relate to that with dolls...) that he needs at certain times. Wow, I thought keeping track of my clothes was hard but there is no comparison. Just when I think we have it under control we decide to take a trip to Strasburg on Saturday and what does he need, why a new train, of course. I wonder if I could strap some of those wheeled items instead of buying roller blades...