Guys generally are discouraged from post in the Women's Sexual Health forum...just to give you a heads up, you may not get many replies.
Being very open with my partner has helped our sex life A LOT. We have always talked everything through, and sex is no different.
Recently, we've started doing "night sex." We used to have to plan sex before...which was not exciting and boring to say the least. In the evening, without say anything, the other partner just starts kissing the neck and really going for it. Sex has been TONS better because of that. It's spontaneous, and it's SUPER hot. It seems so simple...but we didn't really have this figured out before.
Also, oral has been the best thing ever! For almost all of our relationship, we've been doing oral. Because of this, we can experiment and really have fun. Most nights...that's what we do.
We don't have a really daring or out there sex life...we jsut talk about what makes each other feel good and focus on that. That's what makes it so good.