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One time I had a player declare that she wanted to check a door for traps. I responded “I’m hearing that you want to find out if the door is trapped; what does your character do to try and find that out?” She initially said “something my character who’s trained in perception and investigation would think of that I can’t?” to which I said, “I understand you’re not an expert in trapfinding; neither am I. I just need to know what your character is doing in the world of the game so I can determine if it could succeed, if it could fail, and if there are any potential consequences for failing. Just go with something that seems reasonable to you, and I will do my best to interpret that generously.” She said she gave the door and the seams around it a thorough visual inspection, and I determined that this would have a chance of resulting in her seeing through the seam at the top that there was a lever, which would trigger a bell to ring when the door opened. I called for a check, she passed, and saw the lever. The party then went on to try to disarm this trap by wedging something (I no longer remember what, maybe it was a dagger or something) through the seam to hold the lever in place while they opened the door, which I determined would succeed without need of a roll. From that point on, the player in this exchange has consistently been one of the most creative players at my table when it comes to coming up with novel approaches to actions that often result in her succeeding at things without needing to roll.