Photos by Miss Heather/NY Shitty and Jen Carlson/Gothamist

A street artist has put up signs all over Brooklyn (have you spotted them elsewhere?) reminding passerby of a few things. We were confronted by this "Life Is Too Short" sign in DUMBO this morning, but it's the "You Are Not Cool" reminder that Miss Heather spotted in Williamsburg that's really perfectly placed. The signs, which mimic official NYC street signs, are the work of TrustoCorp.