I saw this post (Originally posted on CSS-Tricks) this week about using target="blank" instead of target="_blank" earlier this week. I was amazed that I did not learn this sooner that blank without the _ allows you to re-use the same tab. I know of at least one time where I did this functionality with Javascript window.open and then replacing the location when it updates (I think it's been a while).
It's crazy how much there is to learn even after almost a decade. I am still finding new solutions to old problems.