I use Bach Essences - not just the rescue remedy, but a customized mixture (i wrote about them here http://forums.psychcentral.com/showthread.php?t=199036). They work quite well. Of course, cannot flatten all the high and lows, but seem to have stabilizing effect. Also, you can chose the remedy by your "symptoms" and than use it in acute phase... asides from having the mixture.

Lemon balm and mint are good for the calming effect (while not being downers, so you can use them all the time). Chamomile is also very good. Hops. Rosemary (and it smells nice!). Lime tree. Majoram. These are just some I use. And of course valerian for sleepy sleeping (I use it in mix with lemon balm, hops, lime tree leaves, mint and chamolile).

Lavander has calming effects, but I prefer that is essential oil. Lavander tea is kinda... gross and I feel as if I was drinking a perfume.

As for depression phase, legumen are a mood food. Boost serotonin levels.

As for suplements, I take St. John's wort, lecitin, omega3, gingo. And drink aruyavedic teas - they have ones for depression and anxiety. Not on any meds.

Yeah, I think that is about it. (and no, I am not any crazy new ager hippie... I swear).