Historically I have scanned my graph-paper maps into Photoshop Elements and cut them into pieces to include them in my campaign notes docs. This works fine, no problem.
Recently I have started using Inkarnate and (mainly) Dungeondraft for making maps for use in a VTT. It got me thinking - are there any utilities for making simple, monochrome, graph-paper style maps? There are some assets for Dungeondraft that would kind of work, but I think I'd stick with scanning hardcopy. Any suggestions?