I'll go first:
Claims he can't remember dates so I have to send him full lists on when he has DS (50/50 so not exactly rocket science)
I have to buy all of the school uniform, normal clothing, shoes for DS-request the money he owes and then send it to his house because he claims to not realise what DS needs clothing wise.
I know I'm enabling him but otherwise DS comes back to my house in old, battered clothes and I send him there in new clothes that fit him. It saves my sanity whilst irritating the crap out of me.