MnA, sorry I'm so late on the ball. Don't tell, but I rarely come in here!
You can get a decaf (or caf) skinny latte with SF syrup, no whipped cream. Some DD's have a big selection of SF syrups, some just have vanilla and hazelnut. Of course, you can get regular coffee or tea if you want. Stay away from chai, as most are made with mixes that have tons of sugar. If you love chai, consider getting Tazo's decaf chai tea bags and making your own at home. Brew half a cup of dark chai with the tea bag, then add Vanilla SF syrup or splenda and milk to make a cup. Yum!
Personally, I find getting my coffee at Starbucks or a coffee shop to be easier so I'm not tempted by the smell of donuts or bagels. But that's me.