Here is an idea
Make a team account, the team captain can add the members of his team to a list in the account, then, when the team finds a cache, it can be entered, select the members who were with you on the find, hit submit and it give a find not only to the team, but to each individual that was present at the find.
I know there would be more details to actually enabling it such as admin passwords to the account, and user passwords and such, but I believe that this could really be a useful tool to all geocachers.
Segn Snowowl
Guam