One such piece is an ability to insert images to journal entries. Sure I know HTML well and can write IMG tag with all needed attributes. But it is boring; besides, I have to upload image to some web server and learn its dimensions (for writing width and height attributes). This involves a lot of typing, and is error-prone. Even more typing is needed if you want to resize image.
So I wrote a small GUI-based utility called ljit (for the sake of better name), which really saves me a lot of typing. Visit ljit home page for more info and download. I use the program right from logjam (with the help of “insert command output” patch, which hopefully be included into next logjam release).
Note that it’s still a beta software; although I believe it can be useful for people. Sure it’s free software (covered by GNU GPL).
PS Unofficial source RPM of logjam patched with the above mentioned patch (and with yet another patch adding the other feature I feel missing) is available from here (501 Kb). To build binary RPMS, use rpmbuild --rebuild command.