I have a number of things I consider to be niceties in my shop.
I guess number 1 is space. Both a blessing and a curse.
Number 2 is full time heat and AC 24-7-365... I never had a shirt sleeve shop before. The other shop (farm shop) in the 36' X 50' converted barn couldn't in the past be gotten warm in cold weather if you sat it on fire. The heat and AC in this shop doesn't cost me any extra which is a big "nicety". BTW, the "other" shop is getting the old wood furnace from the house and I have "official approval"
Number 3 is having it available 24-7-365 in any kind of weather without setting foot outside.
Number 4 is the chairs I mentioned. I have a couple of nice comfortable oak office chairs in there and just last night my wife and I were sitting in them talking about "things". I also have 4 padded retired kitchen chairs stacked in another room along with a few folding chairs for visitors. Soon there will be several lawn chairs sitting out side of the walk out door. It's still too muddy there now. The older I get the more I like having pairs of chairs or a bench around the farm. It's nice to sit and talk (or think) and know that you won't need help getting hoisted back up off of the ground.
Number 5, when my father and I plumbed this wing of the house over 40 years ago we installed a brass faucet with threads for a garden hose on the concrete block post near the chimney as a fire precaution. It sits about 30" up from the floor and I have a Rural King plastic bucket sitting under it on a couple of concrete blocks. Even though the shop is in the house it has been very nice to be able to step to that post and wash my hands often as I work without running upstairs. Especially so when doing gluing or finishing etc. I only have to carry the bucket about 12' to pour it down a floor drain.
Number 6, I really like having compressed air in the shop. Maybe closer to necessity than a nicety... My woodshop compressor is too small, too noisy and often underfoot. I have much bigger compressor in the farm shop that runs the air tools there as well as the tire changer. I have long wanted to put in an underground conduit between the house and the farm shop to carry air, water etc. and someday fairly soon my son will bring a smaller bore machine home and we will bore and pull one under the driveway. It's about 100'.
I am probably not at the end of this "nicety" list but I am finally getting sleepy again so I'll stop here...
What is on your list of niceties that you have or want in your shop?