[Brandye]

I do not have one to wash but am very interested in the cleanliness of those I meet socially.

Retract the foreskin (whatever you have of it) and wash well around the corona of you penis with any good, mild bathsoap; Rinse well and dry. In the process the shaft and the head will have been adequately cleansed.

For those whose foreskin does not retract fully (or it does painfully), talk to your doctor. A foreskin that will not retract fully prevents proper cleansing. Sometimes this can be stretched; sometimes a little nick with a scalpel is necessary. The stuff that collects under the foreskin (or the clitoral hood of women) can have some real nasty stuff develop.