"Pointless things" refers to activities or objects that have no purpose or value. They serve no useful function and are often seen as a waste of time or resources. Full definition
She wanted to spend hours sitting with him and talking about pointless things. (goodreads.com)
Nope, it's not easy to extend your empathy to that woman two desks over who's complaining to you about the same pointless thing for the sixth time this week. (inc.com)
I guess writing about pointless things is a trend nowadays. (n4g.com)