You mean get my groceries right? Do makes no sense in this context and so I'm left to guess what you mean. I cook them in my kitchen but I supose most people do. I eat the mostly inithe dinning room. But I never do groceries.
Indeed. I was surprised as I thought that both can be used, and nobody else seemed to have issues understanding what I meant, but at least now it's completely clear.
Fwiw, it was absolutely fine - people don't cook "groceries", they cook food. Then they mostly eat "meals", or sometimes food there too. Groceries implies buying them though.