Spend some time in solitude to think about and create ideas, make plans or goals, and solve your problems.
Nikola Tesla's Best Productivity Tricks - Lifehacker
Like many inventors and creative types, Nikola Tesla was an advocate for solitude when creating and working. Most famously, he's quoted as saying "The mind is sharper and keener in seclusion and uninterrupted solitude. No big laboratory is needed in which to think. Originality thrives in seclusion free of outside influences beating upon us to cripple the creative mind. Be alone, that is the secret of invention; be alone, that is when ideas are born." The idea that you need to work in solitude to get things done is by no means new. We've talked before about how it can boost creativity, and how setting aside some alone time is a great way to recharge to boost productivity. In the end, it's all about productive introspection and using your alone time well.