Probably the biggest impact for something less than $100.00 would be a mole skin diary. I’ve got them all lined up for every year. I’ve had them since 1986. So, in there, in a very tactile way, I have like lists in the back, movies, books. And then, I write in the back the name of the book and then who recommended the book.

Well, the purchase that has influenced me over the last six months is the Apple pencil. I do so much of my artwork by hand and now there is a device that draws and feels like a real pencil that I can use electronically. It’s changed the way I work.

I’ll give two answers. I bought a new electric teakettle. I used to have all the stovetop kettles. Even though I knew it was vastly better, I underestimated how much better my life would be by having an electric tea kettle so I can have tea actually quickly and more or less on demand with very little fuss.

I hate to plug my other podcast, but on episode two I went out and interviewed this guy that is a master of pens. He knows more about pens than we do about anything else on earth. He recommended three pens that have the absolute best rollerball pen, the best fountain pen – and these are all $4.00 pens. ... I swapped out my entire stock of pens at my desk with these cheap little $3.00 to $4.00 pens and they’re amazing.

Well, that all comes from your network. And so even today with, well over 300 million people on LinkedIn, most people have yet to learn how to use their network, in order to ally with their network, in order to find the right economic opportunities. And that’s one of the things that I’m still working on.

The challenge of a big, over-arching vision is that it's hard to know where to start. And your biggest opportunity will change from year to year. Technology changes. Competition changes. You change. My advice: Just start. Find a single unmet need that nudges the world closer to where you believe it's going. And if you hit a dead end, pivot.

Our culture lionizes entrepreneurs who navigate daring switchbacks in their career. Steve Jobs was admired not just for Apple, but also his detour to found Pixar. Elon Musk is revered for helming Tesla AND SpaceX. But don't be distracted by other people's winding paths. I believe you should celebrate your single-mindedness, and stick to your own overarching idea — for as long as it holds your own fascination. In my experience, that could last your entire career.