Default Schema

I'm working at a site where prior developers referenced objects without schemas, because everything is done under 'dbo'. I fell into this habit, and this led to me creating a table with no explicit schema - which means it was created under a schema tied to my login. When I later tried to reference the table in code, using the implicit 'dbo' schema, I got an error that it didn't exist, when it certainly seemed to exist! It took a  bit to track down the error, and it was a 'smack my forehead' feeling when I found it. Lesson learned: don't get lazy about explicit schemas.