I went from (growing up) stockings being an extra little treat w/the traditional stuff-fruit, a couple of nuts, candy cane & a couple of extra treats to extreme excess (hubby's sis's house) stockings full of body wash, cologne, shampoo, gel/hairspray, makeup, bag of candy, toys, bath pouf, gift cards, lip stuff (chapstick for the guys, OPI lip color for the gals) & more.
I'm downsizing since it's just my fam this year. I got my kids shampoo & body wash of their own (hubby's bald so he gets body wash only), chapstick, toothbrush, I'm making each person a snack baggie of their favorite candies (I make caramels, toffee & chocolate barks) that they don't have to share, Bakugan cards for the kids, a Starbucks card for 2 cups worth for hubby, a puzzle book for each of them (hubby's a crosword junkie so he might get a couple) & that's about it.
My hubby sometimes likes to treat himself to random things that make the bill payer in me cringe. If your hubby does the same, get him a gift card for the cringe-inducer.
It's not meant to be another gift (like SIL made it) but a special treat on top of your gifts (like I had it growing up).
Maybe some car air fresheners, or a gift certficate for a good wash.
My new rule if it doesn't fit in the stocking, it doesn't need to be there.
Thanks for the new & different ideas ladies!