Ok, so even if you’re a seasoned veteran T-SQL coder, at some time you will write a query that runs away and supersizes the tempdb database. This, in turn, might fill up your disk and cause other server-related problems for you. At that point, you may find out the hard way that shrinking tempdb isn’t like shrinking any other database.
Here are some tricks that I’ve tried successfully – but bear in mind that your mileage may vary.