I did a bunch of short volunteer activities such as volunteer work at the Ronald McDonald house, and teaching science to kids through lets talk science, volunteered at the world junior curling championships, volunteered at an HIV/AIDS clinic in Uganda and a few other things, even one time things.
In high school I coached the swim team, and was a camp counsellor at outdoor school (volunteer) - did that also in university
Hospital volunteering in cardiac unit for ~2 years (ongoing)
Misc: open water diving, musician, travel, sports
Research: I did co-op, so had 2 research jobs in undergrad where I presented some posters and presentations (technically publications, but not in any fancy journals). Also did a directed studies, with a thesis. Since graduation I have woked as a lab tech for one year.
Employment: had jobs all through undergrad incl. work at starbucks, other cafes, and also the co-ops, and my current job as lab tech
Hope that helps! It all seemed fairly ordinary to me, though there was a lot of it. And my score last year was above average (not super dramatically, though).
I got fairly discouraged myself when I went through these forums, and saw that not that many people got in with my stats. So, I really was convinced I wouldn't get in this year, I was actually really hoping to just get waitlisted. I practiced a LOT for the interview, and I think that helped a lot. Whatever you do, do not give up because it CAN be done!!