Alternative way to dry cleaning/laundering shirts?

I've decided to go back to school this fall and the cost of tuition means I will have to make sacrifices else where. I need to wear dress shirts and pants/slacks to work everyday and therefore my monthly dry cleaning/laundering bill is high. I work about 50 hours a week with the addition of evening MBA classes I'm not sure if I'll have time to iron my stuff even over the weekend. I have never done any ironing so I don't know if there exists alternative methods maybe like steaming or something. Is there an alternative way? Any suggestions would be appreciated, thanks.