Don’t make my mates mistake and slice your sack open with the beard trimmer while clearing a path the night before – cheered up the nurses in A&E though apparently.
Make sure the couch you lie on is warm, or it will quickly become microsurgery, though should be OK this time of year.
From [bitter] personal experience, don’t worry about the surgeon not using enough local – he will discover his mistake a fraction of a second after you do. Just trust me on that one.
Be sensible and follow the advice the nurses give you. I had it done Friday morning, only needed pain killers that afternoon, took it easy over the weekend and back at work Monday. Only problem I had was that the wound was cauterised closed (love the smell of burning ball sack in the morning!) and due to some ill-advised “action” the scab came off just before it healed, and it then refused to heal over fully for nearly four weeks.