A bit taboo perhaps, but I wanted to see what those in relationships owned or used in their lives with their significant others.
For my girlfriend and myself, we own 2 dildos, a bullet vibe, 2 positioning pillows (a ramp and a special bolster pillow), leather cuffs, a positioning sling, a blindfold, some ropes, and a light whip.
I consider us pretty middle of the road with this stuff. I've been in relationships where virtually none of this stuff was used and it was just vanilla (though I love vanilla too), and I've met people who were into some really crazy stuff that I didn't want to be involved with.
(You can include anything in your description that is involved in your sex life that you've bought, whether it be videos that you watch together, or crazier stuff).