Will I regret using a composition graph paper notebook for my megadungeon instead of a spiral bound one? Or just loose graph paper? My idea was that a spiral bound one can be folded over to take up less table space. But a composition one could have the left page with the key for the rooms drawn out on the right. I write small so this would work for. But it won't lie flat open and it'll take up double the space at the table.

Alternatively, I print out 1/8th inch graph paper with lines underneath for the key and print out a dozen of them and link them up with a master tile map. Like pic related but smaller squares.