Oh yes, use "and stuff" all the time. Use it for "etc.", or when you can't think of anything else to say, e.g.
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ESL student: "So, how was your weekend, MrP?"
MrP: "It was, um, ok."
ESL student: "And did you do anything interesting? Did you go to a film, for instance, or read a book? Or visit some friends?"
MrP: "Well, um, you know, er, not really. Just, um, watched tv and stuff."
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"Um" and "er" and stuff are very important to BrE speakers. They allow us to make our sentences (and thus our conversations) much longer than they would otherwise be, without actually saying anything.
("Actually" is useful, too. Three syllables. Can't be bad. Fills many an awkward gap.)
MrP