A fun thing they show in the animations is how you can do basic arithmetic in the size fields. So if you've setup your document in millimetres (I do this for woodworking designs) and you have a shape with width 5mm you can do this:
5.000 + 2mm
Or:
5.000 + 0.2cm
I don't know when Inkscape started doing this, but I just gave it a go one day because it felt like something I would put in (and to their credit, they did).
Nothing professional; just sketches for personal projects in and around the house. Usually fairly detailed, but mostly useful to get a sense of proportion and to design the basic layout of things like built-in closets.
Inkscape's snapping, aligning, and layering features make it a good tool for this as long as you need nothing more than 2D views.
I also use Inkscape to prepare the (plywood, MDF) sheet sawing instructions for the lumber yard. They love it when customers present them with a clear overview for the cuts (and I love it when wood I order is cut correctly). For me it's useful to use a single sheet as economically as possible.
That's awesome, thank you. Built-in closets and simple shelves is what I'm looking for. And maybe a french cleat system for organizing tools. A 2D view should be enough.
I'm using draw.io for floor plans to get a basic sense of spacing for bigger projects. Inkscape looks like a good fit for smaller ones.