I have a peculiar habit of never opening the payslips delivered to my desk at work, because that risks reducing the amount of space available on the back of the envelope, and increases the chance of the envelope getting thrown away by the cleaners.

It's a sad time of the month when the payslip envelope is completely filled and I have to resort to the backs of timesheets, or, as a last resort, an interactive prompt. Maybe I need to sign myself up for more junk mail at work.