As others have suggested 3 in 1's are great but they take up lots of space making it more difficult to hide away someplace and if
electrical they take lots of power & of little use when off the grid.
I do carry a small two slice toaster for when on the grid - its small enough its not hard to find a space for storing it but I also carry a small stove top folding toaster for when off the grid that takes up very little space. I also keep my coffee makers of a type that do not require power either way.