I'm using Fastmail and satisfied with the service, but considering moving to Freedom Internet (NL) when my subscription is up for renewal since they're a local privacy-focused party: https://freedom.nl/diensten/mail
We used to play DnD with a TV screen flat on the table. The DM would show city/battle maps on the TV, and we could walk across them with our miniatures. We liked to play with a grid, but not all maps had one. So I whipped up a tool just to get a grid on a picture and save it: https://www.gridtool.xyz
A single page app to draw a grid (square or hex) onto a picture. Made with Mithril.js and Bootstrap to scratch my own itch, using it to make battle maps for DnD. None of the alternatives were as simple as I had in mind. Also works for cross-stitching patterns!