1) Worst part of the experience is the numbing. No questions.
2) Wear your a jock strap 24/7. It seems silly and 1980's, I get that, but just the slightest movement the first couple of days in worth the thought of wearing a jock "Hangover" style.
3) You will need to flush the pipes atleast 50 times, encourage your wife to assist you. (Nice idea, but doubt she will)
4) When you get tired of wearing the jock, wear it for 1 more day. Took mine off and went back to regular boxer briefs, and made it about 6 hours. Had to put it back on.
5) Plan a sex party with your wife in celebration when you test negative. Send the kids to the grandparents and I guarantee you she'll be waiting for you to get home.