My husband and I chose different usernames when we started geocaching--we usually geocache together but have found ourselves also geocaching separately. We have now started geocaching (on a regular basis) with two other geocachers--they have different usernames. We have recently given "the group" a group name (The Back Door Cachers)--but not a registered name--it is what we call ourselves because we always seem to go the Loooonnng way to find the cache. We are now designing us a "group signature item" that we can drop into caches when we are caching as a group. We all also have our individual signature items. All oif this gives us the pleasure of caching as a group but we can also go out on our own when we want.