Type up your resume and make 100 copies. Then visit every clinic near you and turn one in for either a Kennel Tech/Vet assistant position or a CSR (receptionist) position. Usually these positions do not require experience. Many clinics will train CSRs as well, thought no immediately. That's how it happened for me. Was a CSR first then was offered training to become a vet tech. Since you're shooting for vet school I would say try and get some experience with large animal medicine as well so you're more well-rounded then other candidates. Volunteer every weekend with your local Humane Society or animal shelter. But most importantly make sure your grades are high. Good luck!
Pookie, Papillon 4/17/09
Kaiser, GSD 4/14/11