She wears only skirts.
No panties.
Hose and garter.
Heels. All for you.

You wear a leather vest (easy to do if you have a motorcycle) or leather driving gloves if you have to step outside. (Make a big deal everytime you put them on... smoothing them over your fingers or the back of your hand... Make her help you don them... and give her a caress afterward...)

A clothespin/peg, tied to a string, dangling from the garter or a belt under her clothes... just the right length to dangle between her legs, and bump her thighs when she walks... and bump/rub her pussy when she sits...

A too tight bra... or a loose one with a small tack so that a tug by you on a bra strap or from behind reminds her.

When she sits, legs parted, always open (aka leg posture.) Except when she eats, lips parted, open for you (aka mouth posture.)

When you have those quick moments in the kitchen or elsewhere... a dip of her head. Eyes averted. A whisper here or there of "I'm yours master" where only you can see her face.

Buy her a bracelet, specifically to be worn around family or friend, specifically to be a reminder of her bond to you.

And each night, a routine that she must perform, on her knees, to pay homage to you, to request the boon of your attention.

It's a great time to exert and practice your mental domination and her mental submission.

And instead of a safeword (or rather in addition to a safeword) have two special words or names you can insert into your conversations. One you use to remind her of your domination over her (be sure to make eye contact so you can see her squirm) and one she uses to remind her of her submission to you (again make that eye contact.) See how long you two can last without excusing yourselves for a quick trip to the master bathroom to "clear the pipes."

Nasty time, the holidays, to have the plumbing back up!!