B.W.
Yep, for about 2yrs now my youngest son will ONLY wear clothing if it has a train on it. He went through an anti-blue jeans phase this winter too, insisting only on t-shirt pants or warm up type pants. He wore one red train shirt so much that it literally had holes in it! I finally set some rules, you can wear what you want at home, but when we leave the house you wear what I ask you to wear, and you can change back when we get home. I also set a 'once a week' rule on clothes, because he would dig a certain shirt out of the laundry and insist on wearing it.