I have been working on an adventure of Ruins & Ronin for my local group and decided to whip-up a map using Age of Fables random dungeon generator (for Tunnels & Trolls), found here. I like taking the abstract maps it provides and putting them on paper like below.
I like having an "abstract" map like these - I really don't use the scale of 1=10ft per square (that is just a rough guideline). I also don't assume each room is the shape it is drawn - when I go to fill in the dungeon, I will elaborate on each room's shape & size. I hope to fill these 4 levels in the next few days.