Boy, her day sound just like mine! I'm a stay at home mom but I'm rarely home because I'm busy doing all the taxi-ing around for everyone...dropping off, picking up on a routine daily schedule.
I sometimes feel overwhelmed with the amount of housework I have and sometimes doesn't get done. I set certain expectations of myself and when I can't do it, I become edgy. So I've started delegating some chores when I need help.
Maybe your mom is just overwhelmed too and needs someone to get that load of wash out of the dryer for her; dinner started, etc.
As far as the carrot slicing and ironing, maybe it's just a little quirk of hers, but more than anything, I think she needs everyone to pitch in and help her around the house. Just because mom doesn't work outside the home doesn't mean she's got lots of time on her hands. Remember, some people get paid to clean and cook and their day is done at the end of their shift. Not moms! She's only one woman trying to take care of you and your family and sometimes it's just too hard. Best thing you could do is help your mom with something she ordinarily wouldn't expect you to do...that would help to relieve her burden of having to get everything done at once at a certain time. Good luck and your mom is very lucky to have a son that's concerned like you are!