I am drinking a lot of green and a lot of black tea. I totally agree with you about the Rooibos - awesome taste.
Recently I started my research for stress relieving and mood elevating herbs. I made me a mix of:
St. John's Wort
Mint
Lemon balm
Thyme
Lavender
Sage
Chamomile

I dare to say that a cup of tea before going to bed is... mmmmmmm heaven!

All of which I have planted in my garden. Taste is 10 times better than the tea in sachets. In addition, the tea in small teabags is easily the poorest quality there is. The reason for this is that usually companies use the leaves for the big bags and then fill sachets with the powder on the bottom.