I can help with tips on twitter bounties.

First of all, bookmark your own post where you joined the campaign. And unbookmark it when the campaign ended. This way you have the list of active campaigns.
Then, after each tweet, post the link. This way you keep track of the count too.
And, for keep things tidier, the older weeks can stay on smaller font.

Make sure you read now and then the first and last posts in the thread to make sure nothing big has change (campaign ended early).