Update: Flickr changed its interface, so the scripts in step 2 and 3 no longer work. I will update this as I get more information.
If you have Flickr account and use Firefox, I found 2 Greasemonkey scripts that are very helpful. They make photo editing so much more easier. They are both focused on Flickr batch operations.
Here is what I did, hopefully somebody will find it helpful:
1. Download and install Greasemonkey extention for Firefox if you don’t have it already. Restart of Firefox may be necessary;
2. Install this Greasemonkey script for batch title, description, and tag editing;
3. Install this Greasemonkey script to pick pictures for batch editing.
If you are interested, I have a post on software that I always put on my own machines.
What are your favorite Flickr hacks?