I'm not a huge spender on my "wants", but I find this to be excellent advice.  It's a given that when I start browsing eBay, I'm going to end up spending money on something--and it's 90% of the time something I really don't need.  So I do my best not to pull up the eBay app just to look at nice things that I'd like to own.

One of the best things I've ever done is to give up owning an automobile.  I did that about four years ago and I've never regretted it.  I've saved so much money by doing this, and I've gotten some damn good exercise in the process.  The money I've saved means more money to invest in stocks and bitcoin, which is usually what I do with it.