What happened was that when I had brainstormed this huge list of activities and actually figured out what they cost per hour, I began to spend more of my time on the lower cost activities (like taking a walk or yard work or reading a book or playing games) and less of my time on the more expensive things for the time invested (like going to movies).
It wasn’t even a conscious choice, really. Just by raising my awareness of the implicit cost of engaging in various activities I enjoy, I began to migrate towards the ones that drained my wallet at a slower rate.
Naturally, my entertainment and hobby budgets have dropped over the last year or so at no cost to my enjoyment of life at all. I just simply improved my awareness of the real cost of many of the things I enjoy and started making my choices of how to spend my scant free time from a more enlightened perspective.