Example Policies

I have been unlucky enough to re-write what is already here, in other words create some IT policies. I am specifically after an email and an internet usuage policy, as well as a Password policy. I know of a few Managers in various deptartments who have disclosed their passwords because they are too lazy to authorise sales at the counter when needed, so they give their counter staff their passwords. There is no official policy in place, i want to start to enforce a policy on these managers, but really need your help here. Does any one have any policies they have written or can get a hold of that wouldnt mind me reading to base my own on? im in a bit of a rut.