Espanso - autocompleter
Write more, but type less.
Espanso is a tool I use every day. It is an abbreviation manager. When I type :pw on my keyboard, it enters my password. When I type :mv it fills in my long email address.
Also ideal for e-mail signatures, auto-completion of frequently visited directories, frequently used commands and quickly typing in crazy letters such as ë and é etc.
There's also a hub with all sorts of pre-programmed ideas for programmers, Excel formulas, or a tool to let you know your public IP to see.