What 5e variant/house rules do you play with that work?
I'll be DMing some more 5e soon and I want to take the opportunity to try some different ways of playing (I'll post my own suggestions as comments so they can start their own discussion threads). What alternate rules have you tried that you thought worked well? They can be larger changes to the game or little QoL tweaks (though if you can respond to the suggestion with "at this point just play [different game] instead" then that's probably more than what I'm looking for!)
This might be in the 5e DMG and I'm just forgetting, but I'm a big fan of the 10 minute exploration turn while the party goes through dungeons. I find that it helps things move faster and helps players feel like they're getting enough time in the spotlight during the exploration phase. Rather than figuring out how far they can move in 10 minutes, I just allow characters either to move into an adjacent room (provided there is an unblocked passage to do so) or an action inside of the room. Actions in the room take the whole 10 minutes, but I usually let it slide if a player wants to perform a short sequence of actions to achieve a single result, the whole sequence getting represented by one roll if necessary.
To streamline combat, I have ported over minions from 4e (Matt Colville and I actually converged on this, I had been doing it since I switched to 5e and didn't find his video on it for years) and a modified version of the coup de grace rules. Minions are monsters with full stats and attacks but they die in a single hit, no matter how much damage they were dealt. For the modified coup de grace, if a player character deals half or more of a monsters HP in a single hit, even during normal combat, that monster dies immediately. Anything that gets the monsters off the field before they get boring really, since it allows me to throw out large waves of enemies that only take a few minutes to fight since many of them go down in one hit. I run a fairly heroic game of d&d so letting the players plow through enemies helps create the vibe I want during the game.
I use the 10 minute exploration turn. I use 120 feet as the travel distance of new terrain they can travel. This is based on some older rules that specify for standard movement take the combat travel speed x4. You can also travel back over previous traveled terrain at 10x speed. You can move forward faster as well by sacrificing stealth
I do not use CR to build encounters, and I use milestone experience, but in 4e, a minion was usually worth 1/4 to 1/2 the experience of a monster with equivalent stats.
Cheers, the actual XP is less of a concern, I'm more concerned that I throw the right number of them at the players to be challenging without being fatal!
I found long ago that trying to balance my 5E encounters in any way, shape, or form is just a hopeless endeavor.
I just throw things at my party and kind of let 'er rip. Some end up hard, some end up easy, after a while you get a general gist for what they tend to be able to handle.
I've found that the encounter builder is usually fine, but I would spend lots of extra time setting up encounters using it only to find that the things I plucked haphazardly were only about, say, 20% less balanced on average.
At the end of the day it became a question on if it was worth it to run every encounter through that for being only marginally better than just grabbing and going. For some, they have the time to spare and it is worth it, and that's perfectly great! For myself I found that the extra variance just made things interesting and that 20% extra imbalance could be made up by the odd sneaky adjustment on the fly if I was ridiculously off base in where I expected the fight to end up in difficulty.