this question revolves around how much you know yourself and what phase of life you are in.
i have eight years of work experience and am going to treat law school the same as i treated my full-time job. Law school is 9-5 and maybe an hour or two at home when needed. my average day has me in the classroom for only 4 hours.. that leaves 1 hour to eat and 3 to work. plus sat. and sunday... i dont see where working a couple of hours in the evening is detrimental.