Thanks, Quim - I'm feeling a tiny bit better I think. You're right, it's so hard to get that steeliness back once it deserts you.
I do really like the sound of 16:8, and I'm pretty sure it would work well as a weight loss tool for me. Unfortunately I can't really commit to it for a couple of reasons. The main one is that as much as it would suit me, I know it absolutely wouldn't suit DH. He doesn't mind me nixing dinner on occasion but while he's a competent enough cook, he won't cook just for himself. So, he would either end up eating crap or living on sandwiches which I know he would hate and would make me feel too guilty.
And the other reason is that I don't think it'd be sustainable for me - as soon as I stopped doing it, the weight would pile back on. I need to find a way to eat where that doesn't happen.
But perhaps, as you say, the occasional strategic day might not be too bad an idea. Maybe nights where DH runs and we therefore end up eating later than I'm happy with? I'll talk to him about that, I think.