I have spent the last year volunteering in a lab. The experience has gotten me a job offer in the lab. It is a great way to get more experience with research. Like the poster above, you just need to find a professor/researcher that is willing to have you. All I did was email labs in my area that I was interested in their research and give them brief information about my background and what I was looking to gain. (like if I wanted to expand my research experience with child, etc.) Those that were interested asked for more information.
A Master's degree is another great way to get experience. Both have their pros and cons and money issues.