The bad news is, it's not always easy to find the relevant (older) post.
Case in point:
In the most recent edition of LifeHealthPro (an industry resource), there's an interesting article about using HSA's (Health Savings Accounts) as retirement vehicle supplements. I know that we've touched on this before, but can't find that post (nor the one explaining how patients could access their HSA's for overdue doctors' bills).
In the event, the aforementioned article details both the benefits and the potential pitfalls of using one's HSA as a retirement vehicle. This fits in very well with my own worldview: I often characterize HSA's as "medical IRA's." The take-away from the article is that most folks don't seem to know this, and may be losing out on a potentially substantial nest-egg enhancement.