I am one of those glitter people, lol. You know the girls who have to glitter everything.
I like my Xyron for large areas.
I also use double sided tape. Just lay down the tape, remove the sticky strip, add your glitter. A tip don't remove all your sticky strips at once if your doing strips of different color glitters. Do it one at a time.
I also love glue pens for small areas of glitter. I also just use simple Elmer's school glue or Aleene's Tacky glue for glitter.
I make my own glitter glue. I have a whole bunch of different recipes. You can Goggle glitter glue recipes. I make my own beauty supplies so I buy a lot of different bottles. I use some of those bottles to be my "Stickles" bottles. I also paint with my glitter glue. I like painting with glitter glue because I can control the coverage. You can also use a brayer for glitter glue too.