Trader Joes Tea Tree Tingle, heck yeah! $4 for a 16oz bottle is an awesome price. I'm a big fan of Giovanni Tea Tree Triple Treat
but not the $7 for 8oz price.
I swear Giovanni is TJ's supplier. The ingredient labels are almost exactly the same, with the only changes being the quantities of some ingredients. Surely the quantity of more expensive materials have been lowered to reach the price point TJ's required, but to me they both perform the same.
That and this is the only shampoo my girlfriend and I have both liked. No more bottle clutter in the shower!