At my warehouse job, I often run out of tasks and have to go back to my supervisor and ask, "Hey, anything else you need done?" This happens often so I am constantly asking her this. Is this normal?

I am still pretty new and not that familiar with the ropes yet, so there's not a whole lot I can offer. After I am done with the usual tasks, there isn't anything else I can do which doesn't require an 'OK' from my supervisor. For example, if I return an item to stock without getting her 'OK', I could be in trouble.

I want to find a new way to ask because I keep asking this so often, and "do you need anything done?" sounds ridiculous. I think I need a more casual way to ask without sounding stupid or disengaged in the company.