It may not seem like a big deal but I'm so cross with him at the moment, I've just come on here to vent really.
This year school for some reason only sent parent teacher meeting invites to one parent. DH received ours, and put the meetings in the diary for Thursday. Turns out the meetings were today and we've missed them.
As well as being angry at him, I'm embarrassed and disappointed that we took up two busy teachers' time, and missed the rare opportunity to discuss the DC's progress. Of course I will be the one to go in tomorrow to apologise profusely and ask for another slot. 
He does things like this ALL the time, it's so infuriating. Whether it's unsent forms, unpaid bills etc, it's so stressful having that nagging feeling that something's about to go wrong because of his poor admin skills. Our car got towed away last year because he hadn't sorted the insurance in time, we've received fines several times because he's neglected to pay some bill or other. He also ignores all post, I need to open his letters if anything's to be done.
If he treated his work like he does his home life he'd have been sacked by now. I'm pretty sure he doesn't as he has a well-paid job which he's good at. I mean no disrespect to LPs but I honestly often think it would be easier if he wasn't here - then at least I'd know that things would get done.
What's the answer please, short of divorce? I feel like I've tried every possible strategy to get him to sort this out, I'm at the end of my tether.