Flexible hours: YES

Selling old textbooks as a side hustle typically allows for setting your own schedule. You can list your books for sale whenever it's convenient for you. Online communities confirm this flexibility, with many users emphasizing the ability to work around their existing commitments. While some mention occasional spikes in demand during certain times of the year, overall, the consensus is that this side hustle offers genuine flexibility. Hidden time commitments or scheduling issues are rarely reported, making it a convenient option for those looking for a side income.