The one thing about this game that is really frustrating me is not being able to write notes/stamps on the map. I think that would help a ton.
As it is, here is how I use the symbols:
Sword - nothing yet
bow and arrow - where I think a memory may be
shield = something interesting
cooking pot - cooking pot
star - shrines and towers spotted but that i haven't been to yet
chest - treasure chest I haven't got
skull - stronger mini boss type enemies
leaf - where I think a korok may be but I haven't solved the puzzle
Diamond - large area of items or equipment
I agree, they're should be an option to doodle on the map, especially on two platforms worth touch screen capability. Would make using the map much easier. The icons and pins are ok but not as personal.
Similarly, there really should be a notebook to jot down ideas, recipes, etc. The
are literally begging for notes to be taken. Recipes would useful too.
As for stamps, mine are quite literal:
Sword - spawn point of a sword I might want to return to.
Bow and arrow - as above.
Shield - as above.
Cooking pot - haven't used it yet but would for cooking locations or possibly sites where key ingredients could be found (gourmet meat, hearty foods).
Star - general points of interest or intrigue.
Chest - a chest I have spotted but not opened.
Skull - big enemies or hordes of enemies.
Leaf - suspected or unsolved Korok location.
Diamond (?) - thought this represented shrines so that's what I use it for. I've got about ten I've spotted in the distance but haven't reached the location yet.