I plan for 6 evening meals a week, lunches too at weekend, list meal plus recipe page ref. I plan a mixture of more complicated meals and simple ones (like gnocchi and sauce). Do the shop on-line. When we get in we look at list and if it's a difficult day choose the easy ones. Saves having to think. The last day of the week we get creative with all the leftovers/scraps.
Freeze left overs to use on 'panic nights'.
Also a stock of good quality 'ready meals' - in the SW 2 chefs called Cavendish Cooks sells proper meals in all the farm shops. They are really good, and just need a light salad to go with them.
Shopping list on fridge where I am training DH to list anything we run out of. Which he doesn't do and then gets annoyed when we run out...
A good cleaner - as someone else said, be prepared to get rid of a bad one. She does the ironing too, but we only do shirts and linen trousers etc.
Frozen sliced onions, peppers, med. vegetables etc make making sauces, curries etc much easier.
Bulk buy loo roll, washing lq etc when on sale and stock in utility.
Work from home lots so instead of chatting to colleagues whilst the kettle is on I put on a wash, it takes the same time.
Am looking with interest at the Dyson hand held, the roomba and those steam ironing machines... And yes, unfortunately, most of these tips require a certain amount of income and space. The food shop/planning has massively reduced our costs though and the fridge is almost literally bare by the end of the week.