People talk about focus to break time ratio, or certain tasks for certain times of the day or particular project management tools but I think the best productivity hack is pulling the sleeves and wrestling with that dirty hairy task you keep putting off.
As Mark Twain said:
“If it’s your job to eat a frog, it’s best to do it first thing in the morning. And if it’s your job to eat two frogs, it’s best to eat the biggest one first“
Thomas Duggan 