Andre's advice is spot on. In the production shops I've worked in every machine is stripped of all accessories and tooling at the end of each job unless the machine is dedicated to a particular job. Even then, chucks and collets are checked frequently for sticking. One foreman in a university model shop even went so far as to require band saw blades to be removed after each job to assure that the correct blade was installed for the next job. In my shop I follow the same practice. Every time I approach a machine I make a choice of what tooling and fixturing I should use rather than be tempted to use whatever happens to be on the machine. Of course common sense needs to apply - I leave a vice on the milling machine most of the time.?