Via this post at Web Worker Daily, I learned about Morning Coffee extension for Firefox.
Keeps track of daily routine websites and opens them in tabs.
This extension lets you organize websites by day and open them up simultaneously as part of your daily routine. This is really handy if you read sites that update on a regular schedule (like webcomics, weekly columns, etc.).
I haven’t tried it yet, but it sure sounds promising. I don’t close my browser very often these days, but I know a lot of people who do. Many of those people also don’t use any RSS readers to keep updated. Instead they revisit their favourite web sites once in a while. Morning Coffee seems to be the perfect extension for them.
If you are still not interested, check the link above for excellent screenshots, which show exactly how this thing works.