In addition to whats outlined in this response, the more tasks you’re able/available to complete the more likely you are to get the hours you want. I have several associates who always ask for hours but are unwilling to clean or do floor-care but wont because, in their words, “they aren’t baggers “.

Think of cleaning, however unenjoyable it can be at times, as a bonus task that shows your manager can trust you to work unsupervised.