If I stack 4 fret guards I have the ideal height of my frets above the fretboard. Since the guards are flexible, I put the stack over each fret, bend to the radius of the board, and look for any high spots. It works well.
The cuticle remover - they come pointy at one end and thin and flat on the other end - makes a great glue scraper AND if you are using Ken Cierp's method of the zero-zero fret, the flat tapered end will scribe a nice line on your nut. I just dip it into a little bottle of ink. Yeah a half-pencil or sharpened scrap also does the job, but these are really cheap and work well as an alternate.