DayToDay let you plan your day quickly thanks to its amazing features:
• Notifications are created automatically, so you always know what to do next
• Moving tasks by long-pressing them gives you freedom of ordering things however you want
• In-app numerical keyboard and auto-complete/auto-correct time functionality save you time when typing
• Dedicated keyboard buttons let you navigate to the next window and hide the keyboard, so you don't need to lift your fingers to the upper part of the screen
• Reordering tasks and eliminating time gaps happen with a click of a button
• Starting hour of a next task is filled in for you based on when the previous task ends, so you are focused hour-by-hour

DayToDay additional advantages:
• Exporting tasks to Google Calendar is now easy as it can possibly be
• Plan week ahead to take the game to the next level
• Note observations about your behaviour to become even more productive
• Auto-resizing task description window let you see the whole description clearly
• Material design

Plan your day beforehand to achieve your daily goals. Write down every task and its time frame. Specify tasks precisely (Don't: Maths. Do: Maths - Integration practicing exercises). Remember about breaks to give your mind a rest.

Extra:
Analyse your day to fight habits. Note on-going small activities like smoking and their times. As an example, if you see that you have a need to smoke at 4 p.m., check what you were doing beforehand. Say you had a nap. Then always choose to go for a run after a nap to avoid smoking.