I can only advise that if our DD is anything to go by, it's normal! When she hit the age where she could determine her own hygiene routine it went downhill like a lead brick. She wouldn't brush her teeth, she wouldn't put deodourant on, she would go for as long as possible without washing of any description. To begin with we went with trying to get her to understand the importance of hygiene for health reasons (i.e. no teeth when they've all fallen out). When it became quite clear she didn't give a hoot we moved onto nagging. That worked if we were there to keep it under control (i.e. asking if she had brushed her teeth/whatever before she left the house) but never changed her actual opinion on it - if she could get away with it in any way, she would.
What REALLY worked was the realisation that if she smelt and had bad breath, she would get people at SCHOOL commenting on it and that sorted it out pretty promptly. Once she hit Y8 at school she suddenly turned a corner and started to wash, deodourise and brush her teeth when she knew she was going to meet people that were worth the effort (like friends/boyfriends etc) or going to school. She still isn't great the rest of the time but I will take an improvement where I can get one!
I made it pretty clear to her that if she wanted to go out the house and meet people stinking and minging then she could, because she soon wouldn't like it when they noticed. The problem is that at that age, they aren;t really bothered what we think of them (horrible nagging moany parents that we are) but when their mates start saying the same things, it hits home.
When it comes to clothes and ironing, I'm afraid you're just realising what I think a lot of parents realise as their children start becoming responsible for their own belongings and that is - they don't care and you shouldn't bother! I used to wash, dry and nicely fold all DD's clothes for her, then get completely peeved when I would find them dumped on the floor the next day, or worse, shoved back in the dirty washing because she couldnt be bothered to do anything with it. I quickly decided that I wasn't going to do any of it any more. She was old enough at 13 to press a button on the washing machine and sort her own clothes out. If I am putting a wash on and have some spare space, I'll offer to put some of hers in too, but I don't wash her clothes on a fixed basis and I certainly don't fold them. If there's washing of hers left in the kitchen, it gets given to her in a washing basket unfolded, and she can do as she likes with it. If she wants to dump it on the floor she can do, and I make sure to point it out to her when she has no nice clean clothes to wear because they have all been trampled all over.
We operate the same deal - money for a tidy room, but she hardly ever bothers. She is not money orientated at all so doesn't care if she has no money or not. Sadly if you operate this rule, then you can't really enforce tidying the room since it was already an optional rule.
Have you considered the grown up equivalent of a star chart? I know it sounds babyish but it doesn't have to be and we have had some success. Have a list of 'good things' (i.e. being at the front door at 8.30 in the morning ready and clean, tidy room at bedtime each night), for each good one achieved, it's one 'merit' towards a pre-arranged list of rewards (e.g. some small such as net time, phone time, some bigger such as money, treats, day out, etc). It works even when they are older, so long as the rewards are suitably 'good'.