I bought myself the Happy Planner from Michaels.
http://www.meandmybigideas.com/create365-thehappyplanner/
I also bought a big book of a sticker set to use it daily for my tasks.
I just started planning my week and organizing my thoughts and notes.
I use iCalendar too but having a page in front of me with small tasks is a good initiative to have a better-organized life.
It was on discount, so I ended u paying 47 dollars for both. It is quite expensive but it is nice.