There's a whole series of short podcasts called Quick and Dirty Tips that are worth trying out. You'll find advice about public speaking, to finance, to getting things done quickly. I'm a fan.
That sounds like a great one! I'm going to have to give that a go later on today. Still Processing is usually pretty fun. I recommend it if you're into pop culture. If you're into history, Memory Palace covers a lot of random history trivia. It's pretty fascinating.