I've been lurking around and taking choice tips from here and there for a wee while now and have made some handy 2D draughting families that someone might find useful.

Some are basic line based families such as
- Arrow with variable length and angled head (heads can be turned on or off, too)
- Plasterboard with angled ends and variable thickness visibility options.

To more advanced families such as
- Concrete block plan section with generic default sizes of wall thickness, grout etc.
- Membrane with variable sized thickness and dash length.

They're on Mega as it's the easiest option for me right now but can look at other options if you think you need them...

I know they might not be ultra advanced, but they're pretty useful at times so maybe one day they'll come in handy. Feel free to ask if you want to know how/why something does what it does or tips on how I can make them a bit better