We can learn a lot from the things we regret doing (or not doing). Speaking for myself, it’s a long list. A few standouts include… Not investing in Bitcoin, because it seemed like too much of a hassle. I actually took the initial steps to plunk down a few grand back when BTC was less than $100, but I found the process too annoying. Oops! Not building massive email lists with Facebook...
Various thoughts on digital marketing.