Does she enjoy being around kids? Considering the severity of her herniated disc, she may be able to successfully start an at-home day care for children in your neighbourhood. My aunt does this and she is making reasonably good money. I don't know the numbers off the top of my head, but it's definitely more than minimum wage. IIRC, she takes care of about 12 kids scheduled at different times through out the week. Usually no more than 4-6 at a time though.