Write a list of all the evening meals you generally eat, plus anything you may need for the day time and plan a list for the week off that. It is much easier than trying to think of a list from scratch.
I have been shopping on-line with Tesco for almost 2 years, the website stores my "favourites" so it is very easy for me now. I am like Tigerchick, perishable veg at beginning of week, use freezer lots for salmon fillets, chicken, mince (home-made meatballs, chilli) make extra mash potato and freeze that. Bread goes quick so I either do top up mini shop at sainsburys where I also buy their tortilla wraps as they don't stick together (great for sandwiches, fajitas)and sainsbury's chicken nuggets.
I have "store cupboard" meals such as tuna pasta bake, chicken curry (freeze chunks of fresh ginger) freezer also for fishfingers, chicken nuggets, veg - green beans, sweetcorn, peas, broccoli, even frozen diced onion and frozen mixed peppers. Lots of tinned stuff like fruit for my boys with ice cream from freezer, beans, spaghetti hoops,
I find it a breeze now!!! Plus no bags, delivered straight into my kitchen, it is BLISS and I am a sahm, my dh says as long as we have food in he doesn't care how it gets here!!! I spend around £70 pwk on family of 4; I have baby in nappies and he is still on formula (he is 17 months) as he doesn't like cows milk.
Wipe board in kitchen for writing list of meals for week and what I have run out of.
Phew!