Sex Advice! HELP

Any advice on how to spice up my sex life? My boyfriend and I live together for a year now. Things get hectic due to our schedules. We both attend school and work. So that makes us both busy from 7am-10pm. How do we make time for sex? How do we get in the mood after a long day of work & school? How do I get him in the mood when all he does is want to come home and watch TV? HELP!