A lot of what has been written by everyone above describes my stable/euthymic states, including and plus the following:

* Good energy, but not "over the top"
* Able to concentrate on a normal number of projects and what others are saying
* Grounded and able to practice mindfulness, easily
* Clear thinking with creative and analytical abilities
* Feel not only content, but find simple pleasures and humor in many things every day
* Able and interested in planning and implementing new projects or social events
* Can easily identify stressors and quickly pull/implement coping skills from "wellness toolbox" (good success, but not necessarily perfect success)
* Seek out social interactions in a reasonable way, and be more giving
* Perform good (or at least better) self-care
* Increased patience and ability to tolerate annoyances or difficulties