Just wanted to say hi! I'm a bit further West than you, down in Cornwall.
I tend to do a once a week shop at my local stores. And pop into a supermarket maybe once a fortnight to stock up on other bits and bobs. Keeps me out of the shops and on budget. All gotta make compromises I guess. I just make sure the stuff that doesn't keep well gets eaten first and obviously you can put all your meat in the freezer. I menu-plan on Wednesdays and go shopping on Thursdays- just like my mum... and my nan! My shopping list is pretty basic these days, but very yummy! Fresh fruit, veggies and herbs, meat, eggs, nuts and variety of animal fats to cook with.
I think menu-planning is generally an excellent idea because it means you can make sure you get the full breadth of foods in your diet- oh and don't have a load of waste at the end of the week. I tend to waste more if I'm constantly in the shops and something will always get ignored and left in the fridge.
I have a chaotic creative streak and by being organised it means I can divert my energy into more interesting things than the stress of "what shall I eat for dinner tonight?" Oh, and definitely handy if you're starting out and you find the carb-cravings are getting to you one way or another- not good standing in the middle of a supermarket at 8pm after a long stressful day.
Are you doing this on your own? Bulk cooking might be very handy- make your own freezer meals.