Since starting blogs in the classroom the single most annoying problem is the students' inability to remember logins and passwords. There have been other snafus like students using nicknames that I don't recognize or posting to the wrong blog. I have them all for two classes and sometimes they get confused. Some of the students can't even remember the password to logon to the network. Those I have in a spreadsheet sent to me by administration, but I made the decision early on that students would be responsible for they're profile on blogger. Mainly I am lazy and didn't want the responsibility, but I also thought that it was important for them to learn how to create and maintain an online profile.
I thought that the threat of losing all of their work on blogger would be incentive enough to keep track of the password. The fault in this reasoning is that my students for the most part don't value their work. They do value points so I had many of them create a new blog every time I assigned a writing. Of course they would then forget to give me the new URL and thus we would have many a panic moment when grades were due. I guess that I could give them a grade for maintaining the blog, but again this seems like a false incentive.
Because of a blog I read earlier in the year, I decided to let the kids to use their phones to keep track of the passwords. I think this worked for several of the students, but as a security measure it would be terrible. These passwords aren't protecting anything valuable, but if they lost their phone then they would also be giving up access to their blog.
So, I have decided that a password is a school supply. If we can charge for pencils and paper, then can we charge the students for keeping track of their passwords. I suggest ten cents for every time I have to look it up. Now there will be an issue of the student not receiving anything tangible, but I would make the argument that it is intellectual property and the students are only giving us a reward for recovering it.