Patients will be randomized to one of two interventions intended to facilitate safe disposal of opioids after cessation following surgery. For pragmatic reasons, participants will be randomized by day to either the information sheet or the disposal bag using a block randomization schedule. To ensuring adequate sample size, patients will be enrolled for a ~4-week period following the 2-week usual care run in period. In the event that the sample size estimate has not been reached after the 4-week intervention period, additional patients will be enrolled accordingly.