I host/GM from home. What I bring to the table:
Home Game
Copies of the Core Rules and other relevant books for the game system I am running. I usually have multiple copies (at least 2, often more) of the Core rules of the system I am running so I put those out on the table for other players to use who need them.
A Megamat goes on the table as well as my White paper poster tablet w/ 1" grid which is my projection surface.
I bring out the big boxes of minis - PC are placed out on the mat and I then spend a while breaking out the minis of foes I expect to be using that night into small white cardboard boxes that are typically used to store 500 or 1000 magic cards. I put those aside so I can get at them later without too much trouble.
Big bag o dice comes out by my chair.
My binder with notes and adventure/module is by my chair on the table. (I try not to use a screen anymore.) Player sheets are left with me, so that's in there too.
And the laptop comes out, of course and that all gets hooked up to the projector and I'm done.
I have a
new dedicated gaming room in my basement with a 6'x9' table which sits
10 ready for next month, so there will be much less of all of the above going on. I expect to be able to do ... essentially
nothing in terms of set up. It will ALWAYS be set up.
I'm adding in power bars to the player stations, under table sound system and of course I've got the projector set up with a dedicated machine to drive it. Bookshelves with doors for minis and books that keep the dust off.
It's very cool and I'm very happy about it. It's a teenage fantasy coming true. "When I grow up, I'm going to have this FREAKING COOL gaming room!!!" I'm not sure I've grown up - but at least I got the gaming room (and a young, pretty & understanding wife who plays too!)
All-in-all, the gaming room fantasy was a lot easier realized than the wife part. I had to upgrade to wife 2.0 for those bonus features!!!
Road Game
In the rare circumstance I am travelling to another venue to GM, then it’s the core rules, a copy of the DMs Guide/MM if that exists in that system (or something akin to it if I am running another system.) Laptop and book of notes, smaller bag o dice all goes in a backpack. The other venue which is used to host games in my gaming circle (a player's house) also has minis (far more than I have, actually), another projector and battlemats are all there too - so I don't have to double up on that stuff.
What I have all fits in a largish backpack. I stop when I'm near the venue to grab snacks so I don't have to transport those far.
All-in-all, I vastly prefer to host as there is a lot less lugging crap around and I can spend more time prepping the game and making sure the minis I need are out and available (but tucked in boxes so I am not telegraphing punches to the players).