Yes, it's often by the Laughing Cow cheese. You can also get really good stuff at a middle-eastern deli.

I use it as a sandwich spread and with vegetables, as well as with pita wedges or baked corn chips. You can usually find different flavors, too ... garlic, roasted red peppers, etc.

Yum.

Our Super Wal-mart has it boxed, you just add water. I have a box here at work so I can mix up the amounts that I need. It can be found on the ethnic aisle (blue box, mfg name: Sadaf).

Just a convenient way to have in small amounts. Fresh is better; I just can never find Tahini (sesame seed paste).