I've been reading and thinking a lot about this mental load idea. Our partnership is much more equal than many I think (possibly because he's more organised than me so better at remembering what needs to be done) and I don't feel I take on the mental load a disproportionate amount of the time. One area which is always my domain is shopping. My DH did the food shop (from my list) the other day and several items were not as I would have bought them. I didn't say anything because I thought he should have the autonomy to make his own shopping choices, but I did find some of the swap annoying. Would you have said anything? These were the differences:
Eggs - lower welfare and medium rather than large (awkward for baking)
Yogurt - full fat and branded
Salmon- precooked
Savoury eggs - cheaper
Tinned tomatoes- packaged in unnecessary plastic
Pasta - quick cook
I absolutely don't want to be picky but there are good reasons why i make different choices: the pasta is not as nice, the salmon is no good for the meal I had planned etc