The best solution is often the simplest: start picking up additional people to, you know, actually carpool.
Sources to find additional riders:
- rideshare.511.org
- ridenow.org/carpool
- www.slug-lines.com
- www.flexiblecarpooling.org
- sfbay.craigslist.org/rid
This answer originally appeared on Quora: What is the best option for access to the Bay Area carpool lane after hybrid access expires June 1, 2011?