I decided to buy a new A5 sketchbook.
I don't know how far I will get in filling it in or if I will give up at some point, but at the moment the plan is to fill it with as many doodles as possible :D
I have submitted a doodle for a summer doodle contest. You can see my submission in the link below, hope you like it :) The other submissions are really cool too.
https://www.facebook.com/photo.php?fbid=464094483662903&set=a.443993685672983.106681.138101549595533&type=3&theater