Glitter is just......more glittery!
I use it on things......you can glitter embellishments (pumpkins for Halloween, fall leaves, Christmas trees and ornaments)
I heat emboss snowflakes and then sprinkle with glitter while the embossing is still wet......adds a cool sparkle
Glitter is just more intense!
You can use the thin tapes and make your own glitter tape, you can add glitter to the edge of papers, transparencies etc..
I also will just glue chunky bits of glitter onto backgrounds of layouts for a random sparkle.....
It can be messy but I use one of the glitter trays and clean up with wet wipes and don't find it that bad....