I tend to use one color a lot and then fall in love with a new one. I make a lot of cards a week so my infatuation can run as short as a week or it can span months, especially if there is DSP to support the love affair. LOL!
Midnight Muse is my muse right now. (couldn't resist the pun)
I reached for Elegant Eggplant and had it out and wondered why I don't use it more. I, too, love green and purple together. As the weather cools down to a breezy 89 degrees I will more likely reach for more autumnal colors.