Here's a couple of other ideas that I thought of. Line the dresser drawers with clean linen or other fresh scent drawer liner, and maybe stuff a few fresh scent - not flowery - sachets in there as well. Hang a cedar bar in the closet. I used to have a closet with a cedar chip wall, and it smelled great. These might help with the clothes scent. Suggest putting a generous amount of OxyClean in the wash, along with the vinegar. And using a fresh linen or similar scent dryer sheet. Put a clothes basket in the kid's room. Stress any item he wears goes into it when it comes off. If the kid is on any medication, there is a chance he might smell no matter what. Don't ask how I know this. Regular showering and deodorant will help though. Make sure the kid thoroughly washes his hair. Good luck!