I'm entirely certain why but I'm kind of in love with the Ito En tea shots. Right now the Sencha Shots by Ito En are on sale at Fred Meyer's for $1. Curiously, I fell in love with these long before visiting Japan last year but my interest was rekindled when I discovered Ito En is one of the biggest green tea suppliers over there. They also make an Oolong Shot variety that comes in a pretty blue can, but for some reason only New Season's appears to carry that variety.
There's nothing particularly special about the products. They're little cans of strong, cold tea. It's simple.
Much like this blog post.