I was going to suggest the shower head too, but I make her stand while she's restrained there. Drives her nuts when I shower as if she weren't there, and don't let her touch anything. When I'm finished, I give her a little treat - orgasm deprivation. Since she's already wet, and soap glides so nicely over wet skin, I can rouse her to a frenzy - and walk away.

I also learned a little trick from ?? (someone on here). If you have two doors which are quite close together, restrain her arms over her head (rope over the top of the door), then rope or leather from the doorknob, between her legs and to the other door knob. Pulled tight, of course.

Spreadeagle on the dining table can be a handy position, too. Face up or down, for flogging, or easy access to anything, while you sit there, nice and relaxed.

Have her stand behind a big armchair. Tie her ankles to the back legs of the chair, then bend over towards the seat of the chair. Tie wrists to front legs of chair. Perfect target for a paddling, or just watching the blood rush to her head.