What have you got planned for your commute home tonight?
A few more chapters of that half-baked fantasy drama? Another attempt at a Candy Crush high score? Unplugging your brain and staring out the window?
Well, we've got some life-enhancing suggestions - like learning a language, or improving your concentration - that requires nothing more than tapping about with your thumbs.
Prepare to gain some serious skills with our pick of brain enhancing apps.