Each year I labor over what to put in Dave's stocking. It's usually so heavy with "stuff" that it tips almost sideways over the fireplace. There are things that he gets annually (fun boxers and Ho Ho's) but I also try to shake it up each year.
If you get stuck on what to include, think of the recipient's interests and go from there. Here are some ideas:
Dental hygiene items: toothbrush, floss
Make-up remover wipes
Tickets to a show, sporting event, or a movie theater
Wine glass charms
Cute cocktail napkins
1st Aid supplies for car
Car wash certificates
Decorative cupcake liners
Measuring spoons or cups
Packets of seeds
Travel alarm clock
Travel size toiletries
Bring some extra holiday joy with stocking stuffers!!