Wow - just found this site last night in a rage and you nailed it. Me: Daughter, no children, part-time job from home. Thus, its all apparently my job. What angers me most - the many siblings who do nothing and then want a pat on the back when they send an email saying hi.
When Mom was in the hospital for her gazillionth surgery, one brother called, interrupted me while I was explaining the situation and said "I want the short version." I can't write the short, two word version I wanted to give him.
I officially hate 5 of my 6 sibling (yes, that many do nothingers) which is sad, but its become clear they don't care and you can't change people.
But another pretty sad part is my Mom was not a good or nice mother and so its coming back to bite her (while battering me). UGH!!!! Nice to hear I'm not alone!