I have a full-time job, a part-time job (necessary to pay for my horse!) and I ride 5-6 days a week. My horse is technically on DIY grass livery, but my YO is really good in that she does his morning feed (and evening on the odd night I'm working) as well as checking and changing rugs in the morning if necessary. However, even without her help I could manage to get up there in the morning and evening everyday and at least feed and check him, if not ride, she just makes life much easier!!
For me, the jobs mean I can have the horse - so I always fit him in! I'm never home before 8pm, and often am later, and then head out for some cross-training at the gym (to keep me XC fit) after dinner, so I'm a pretty busy girl!!