I qualified as a librarian after my degree and worked as one for about 10 years pre-children. Then I was a SAHM until the children went to school, when I thought of going back into libraries, but in our area it meant working three Saturdays out of four. I'm glad I didn't now as our borough has got rid of most of their qualified librarians and are using unqualified staff and volunteers now.
Anyway I started volunteering at the children's schools (infant & junior) and was eventually offered a part time TA job at the junior school, which eventually got converted into my current job as IT support manager, mainly because I knew how to unfreeze a computer with CTRL-Alt-DEL!
I now manage about 100 computers and laptops of varying ages and a lot of other equipment, support IT lessons and children using technology in other lessons, create resources, maintain the website, take photos of school events, manage our online resources and quite a lot else. It's not as well paid as a teacher, but not as stressful either.
I'm fairly unusual among primary school support staff in working a full time week during term time - 20 or 25 hours is more usual. I do enjoy the holidays, (especially right now when all the rest of the family is going out to work this frosty morning and I'm still tucked up in bed MNing on the iPad) but of course they are unpaid.
But now the DC are both working, though still living at home, I'm beginning to find the summer holidays a bit long, so next year I might see if I can find a holiday job (though as our new head has just announced he wants a new website, I'll probably end up spending the summer working at setting that up!)