Glass.
Stemware, barware and the right glass for the pour.
The home bar tools and glasses worth owning.A good home bar is not a cart full of gadgets. It is six or so tools that professional bartenders actually use, a proper glass for whisky, and ice that does not melt into the drink in five minutes.
The wine glass for every night of the week.You do not need a cabinet of varietal stems. You need one glass that is thin at the rim, sturdy enough for the dishwasher, and cheap enough that a break is an annoyance rather than a funeral.