I always like to sit at the table with a nice cup of tea when writing my menu plan, my controversial choice is milk in first, yes I am very common. When I first started making tea in a pot with leaves I asked those who would know Fortnum and Mason how to make the perfect cup of tea (the only other reference I had was the George Orwell essay) they said milk in first is fine, so that's good enough for me.
While the water is heating up for the tea I clear and clean the dining table, collect together any books or magazines, and dig out my blue book and find a pen, usually to be found in the junk drawer. Once the tea is poured I'm all ready to write, this month I chose my four favourite books, the recipes just jump out at me as I nosey through.
I make a note of anything we're doing that month, so I know when we're out, when I need to make something to take with us - usually when we're at the football, when/if Dan's away, and when I need something quick and easy. I have also got into the good habit of scribbling down which recipe comes from which book so I don't have to search when the time comes.
The plan is written with leftovers in mind, so if we're having tofu one night, there will be a plan to have it again within a day or two, if I'm roasting veg or opening a tin of something the rest will be used in good time, so the plan isn't as wasteful as it may appear. And of course if I change my mind then that's fine, as long as there's no waste it doesn't matter. The plan is a guide, not something set in stone, I can either follow it or react against it depending on how the day goes, it's all better than staring at the pantry when it's time to cook with no inspiration - I take my hat of to those who can do that, but it's not a skill I possess.
Finally I write the plan onto the calendar. The calendar is on the kitchen side of the fridge so I can see it at a glance and everything should be plain sailing.