Walking is a great idea. Ive had holidays where there has been a lot of walking (shopping) & found weight mysteriously vanishing or not being put on. It doesnt make me hungry the way running/the gym does (I used to do a lot of fairly tough exercise & was still a stone overweight because I ate so much!) & my dog would love it too. Maybe even a sort of walk half the time, run half the time thing? Like you say, its all a calculation..even the IF diets are running off a calculation of total cals a week.
Oh, & elvislover I have lost weight steadily & fairly dramatically on 500 calories a day. So trust me Ive done the hard work. And I know ALL about sacrifices. I just wanted to switch to something less quick but where I could actually still lose weight, as this is getting too difficult & it is not supposed to be long term. But a pound a day or a pound a week...if Im lucky..what would you do? Oh, & yes, I do have a 'negative attitude' to dieting. I hate having to eat strange no fat versions of food, & artificial sweeteners & be hungry most of the time, or feel rubbish because Im not eating carbs. I know a number of people on the gold standard of 'healthy eating as a way of life' diet, weightwatchers....
but they are not actually losing weight.
I think the bottom line is that NO diet will give me or anyone like me more than 1.5-2 pounds a week & I will only get that by sticking to an exactly calculated number of calories & walking. I managed 1.1 pounds easily a week a few years ago eating exactly the same food most of the time (about 1100-1200 cals I think) AND going out to the pub at least 4 nights a week (drinking beer!) And even less exercise than now. Like clockwork, every week, until I added an 80 cal snack to the mix every day & didnt lose weight for 2 weeks till I realised what had happened. Looking at the threads NO ONE is getting more than that no matter what. So no point in starving myself half the days of the week, or giving up carbs, I think I will tough it out with HCG for another 10 days then switch to a 1000cal (+ red wine, which is not fattening!) + walking regime for the rest & settle in for as long as it takes. 1000 calories is double my current allowance & I wont have to eat specific foods so it will be LUXURY! Add in eating as few as possible of those cals after 7.00pm (like last time).
Toast! With butter! a 500 cal lunch! Yoghurt! Bananas! A skinny latte/cappucino on the weekend! Rjoca! If it works well I might even write a book

So, 10 more days of **** & then its time to break out the calculator, find a good app, & find out the calories of EVERYTHING. And buy some suitable footwear..