Do you like seeds?  I dry-fry pepitas, sunflower seeds, flaked almonds and some pine nuts.  Then when they're toasted, lightly toss through some tamari.  Delicious when they've cooled down and keep for ages in tupperware - no need to refrigerate. 
Actually - I have run out of tamari and am new to the no-sugar life, so I don't know if it has sugar or not.  Soy sauce tastes really similar so you could use that, but do it sparingly!