Infinite secret doors
When your players use discern realities hoping to find secret doors, do you add them on the spot? I ask this because when I write up a dungeon crawl I make a map with all secret doors and traps already there. I also design the dungeon with about 8 set pieces/rooms as I find this can be run within a 4-5 hour game.
I know we are suppose to leave blanks but that could extend the game by hours and make the dungeon like swiss cheese with secret doors. Just curious as to your philosophy on this.