I am glad you brought this up. I was talking to one of my players yesterday about rules and such, and tossing around different ideas. It got me thinking: I wonder how many people use or have used house rules, what are theirs, and how did they turn out. I might start a new thread about it.I added some significant house rules before playing 5e. (It was some changes to spell casting, not weapon combat.) Even though they did not cause the game to crash and burn, they were definitely a mistake - they were quite unnecessary and resulted in some minor but still annoying problems.