If you can have a shower afterwards don't use any of the products on offer be it bodywash or hair products. Just turn the hot water up as much as possible & let it do it's job on your cock, arse & mouth & everywhere else then dry off with the towel hard. Tempting as it is to use even your own deodrant or aftershave or mouthwash in your car or wherever don't. Just walk around & get a bit dishevelled the rest of the day, this works well if you punt early morning or lunchtime or early afternoon. Plenty of time before you get home so that you're not too "clean" & arousing suspicion.