Well, my point is...first KNOW your partner, their likes and dislikes...
then...
WITHIN those likes (or a good guess it would be), get crazy, daring.
Work to peak the interest that will get you what you've been missing as well.
It's important, though, while doing the "crazy" not to step into an area that you're not sure about or know (or have a pretty good guess) that it wouldn't be received well.
For instance, a simple dinner out can add an element of risk and naughtiness to it. Making it fun for both is paramount, I think.
There are really alot of ways to spice it up in a way that would encourage the partner to want to go that extra mile again. Sometimes, in busy lives, sex can become mechanical...just release. It's the intimacy before and after that that women most complain about missing.
Communication is necessary to find out what they might feel they're missing as well and combining the two when setting the bar.
I guess what I'm saying is it helps to take the ordinary out of it once in a while but upping the bar...carefully not upping it too far.
KD