Everyday, we have a massive list of to-dos and everyday only has 24 hours in it (8 of which should be sleep – you're sleeping right?!!?!) The question for us is not necessarily “how do I get more done?” but more along the lines of “which things should I do that will move the needle the most?” which means, many things will not get done (and on purpose!).
After reviewing all the activities of business owners and entrepreneurs for years, we've determined that there are only 4 key activities types that give you leverage – i.e. one portion of effort leads to multiple portions of outcome. The more we can do these 4 key activities, the more we (and our business) will benefit, grow, and scale WITHOUT getting more stuff done.