Having numerous issues with SS15 right now. Just went to pack a bag for him (in secret as my husband is taking him to a farm out of town tomorrow and the drawers are empty. There is a plethora of shorts i have bought him - thats it! in the last 6 months i can think off the top of my head of 3 pairs of sweatpants, 4 t-shirts, a hoodie and COUNTLESS packets of socks and underwear. I found 4 odd socks.

My husband actually questioned him on the location of some shoes last week to which his response was "Mum thinks its really funny when you ask about my clothes. She says "What, does your dad want to wear them?!"

I feel you! Blood Boils!!

He's 16 not 6 if he has no clothes at your because he's taken them all to his mum's house.  Then tough he's going to have to figure out what to do.   Don't buy anymore clothes for him, he wear the same clothes all weekend or he can wash and dry then every night.

Your SS is 16.  He is more than old enough to be responsible for his own clothes.  I would give zero f's about what he was wearing unless he was so dirty he was creating an unpleasant smell.

If he comes over wearing socks and underwear, does he leave with the same pairs? Wouldn't he be leaving some behind?

Anyway, we bought SS clothes for our house to avoid the fights with BM - I always just bought him super cheap underwear and socks so he had a million pairs and this wasn't an issue. I didn't mind doing that for DH and you can find them very cheap at Walmart or on clearance.

I would agree though, that it really is on SS and not BM at 16.

We stopped buying SD14 clothes for a couple reasons: 1. They would go to BM's and hardly ever come back 2. She complained about the clothes we did but her but would never give us input on what to buy

 I'd been telling DH for years that SD is old enough to make sure she brings clothes we buy back as well as pack clothes to wear since we don't have any she wants to wear. 

 The last time DH bought her clothes was for her sister's wedding rehearsal when she thought she'd get away with wearing joggers and a tshirt (even though we told her to pack nice clothes). We ended up having to go to Walmart on the way to the rehearsal and she was pissed at me when I told her joggers weren't acceptable. I think since then DH bought her socks and put them in her Christmas stocking. 

I agree with the others, skid is old enough to bring clothes himself and if he didn't pack enough, he can learn to wash the clothes he does bring. 

and told the kids.. you were them to the other house that is fine..but when you have nothing here, I will not care if you were the same outfit every day for a week.  We WILL NOT buy more clothes.  Don't like that....then bring your clothes back.

DS..he just keeps out clothes here and his dads at his Dads.

DD..she brings a suitcase(s) back and forth with what she wants.  

Both DS and DD can drive and have cars so if they need to, they just drive and get what they need.

SD...well she has been bitten by the WILL NOT buy clothes several times.  She wears stuff from here to the Beaver Den..aka the black hole and it gets lost, not laundered, used for scrap material..who knows.but it tends to never get seen again.

The last time...SD complained she had NOTHING to wear..DH turned and said..not my problem. Stop wearing the stuff we buy to Beaver's and you won't have this problem.

How are you even aware of his undergarments shortage? Are you still doing the guy's laundry?!?!

We gave up the clothes issue years ago, around the time the SDs each were around 12. Let them know that if they needed anything to tell us because we were not going to continue buying things that were not worn or disappeared.

Neither one ever asked. They just apparently wait until BM buys things. Which is a long time between and things get small. Those things DH and I get rid of periodically. YSD has such a hard time asking for things BM has supplied her with soap, handsoap, toothpaste and toothbrush for our house. She'll wear one pair of shoes until they literally fall apart. The last time this happened I watched to see how long she'd go....it went until the sole of one shoe literally half fell off one day, that's it, we're shoe shopping NOW.  We do make sure she has shoes.

I don't even bother thinking about it much at all.

Despite paying no CS my POS ex doesn't buy clothes for my kids, complains about the clothes I buy and never sends anything back. I taught my BK's years ago to bring back their own clothes. They just stuff their clothes in their backpack and take them back and forth between households. They knew how to do this by the time they were 10 years old. My adult kids now buy their own clothes with the money they earn at work. I refuse to let my younger kids go without so I continue to buy their ENTIRE wardrobe.