It is very very typical - part of the reason why many people recommend going dark. It actually gives the WAS something to miss!
Picking up milk, in my opinion, is fine - it is a family thing. Changing her oil is fine - if it saves money for the family or is a family thing at all. But if you do it, just do it, and don't say anything about it. Accept thanks, and move on.
Even if you do ANYTHING of it, just keep up the dark. I did 30 days, and W was almost a different woman afterward - I responded, and she turned back into a hag.
Just protect yourself - I think there are two types of WAS: 1. The ones that are biotches - and if you go dark, they will either break away from you completely because you're not bending to their whims, or helping them out. 2. The ones that aren't - and they will discover how much they care about you when you go dark, and it may be the catalyst to change
You need to determine which your W is, and act appropriately.
