Let's face it. We can't remember everything. So just own it and write down all the sh!t you will forget. Groceries, taks, chores; as long as you don't lose the notebook you won't forget the sh!t you would normally forget. 
.: Material: 100% paper
.: Paper weights: 350 gsm (covers), 90 gsm (inside pages)
.: One size: 6" x 8" (15.2 x 20.3 cm)
.: 118 ruled line pages (59 sheets)
.: Front cover print
.: Dark grey back cover
.: Metal spiral binding