sparkly !!!! I'm watching you, and you can't hide.
I think you've done tremendously well today (even if you've cracked this afternoon).
It is quite warm outside, so do drink lots of water, and I guess water may even help flush out whatever completely disgusting toxins might be floating around in your body, but they are diminishing minute by minute.
Try the book, it might help.
Had to LOL when you said you'd been looking at WH Smith and then Tesco / Amazon etc. for pricing on Carr's book when you puff £4 worth of poison every day or so.
Anyway, you said you'd buy it. Have you ?
If you're still fag free tonight, and I hope you will be, maybe ask dh to smoke outside only - just for a few days (or as long as you can put your foot down). . It sometimes isn't easy watching someone smoke, but then again, watching them suck that poison can make you feel smugly superior.
Best of luck with it.