I love doing meal plans.
I do them weekly and shop weekly. I try to get household items on sale and in bulk so I only need to get those monthly, bi-monthly, or 6 monthly like toilet paper and cleaning products etc
I like planning meals that are seasonal so that I can get our veg and fruit as local as possible.
I find it a personal challenge at the moment to keep my shopping below a certain budget while still making attractive, tasty and healthy meals for my family...we were spending $250-$300 a week on shopping! I have gotten this between $150-$200 but I would really like to get it lower. My daughter has allergies so it makes it hard to get ANYTHING with dairy in it cheaply. She also reacts to most things with numbers on the back (she gets a rash on her face and is grumpy) so we have to aim for meals made from scratch which are as preservative/additive/clolour free as possible.
I pick seasonal recipes, plan the weekly menu, do my shopping list and when the weekend comes around I go to farms or markets first, Aldi next, green grocer and butcher next and finally only if I HAVE to the la de da grocery stores.
Look forward to doing our plans in the new year and getting ideas.