What does the job you're going for actually entail? Then you can tailor your experience to what an employer values. In one resume that I reviewed recently, the job applicant organized her resume by skill set, rather than listing her experience in chronological order. So, one bullet point was titled "Social Media," and she listed all of the various jobs where she honed that skill. No, she didn't have lengthy full-time employment, but she had amassed experience that added up to something in that particular category.
Interesting review of book Leave Your Mark by Aliza Licht, SVP of global communications at Donna Karan International, from Tampa Bay Times paper, June 28, 2015. While her job advice is presented as particularly appropriate to younger, first entering the job market candidates, what is quoted here could also apply to boomers switching careers, too.