we try to do it, purely for the convenience element. quite often we arrive home at different times and making stuff in advance or something that will keep warm (like a stew) is great.
Also a slow cooker is a must have – jam it on in the morning and when you get in you have melt in the mouth meals waiting for you.
My biggest problem is getting away from the "easy" staple meals like spag bol and baked potatoes and trying something more interesting. made a few great stews earlier this year but need to explore quick meals more – they dont have to be complicated!
Stir fry is awesome for a quick meal and done well can be really tasty.