Right now I'm just starting to break new personal records for hairyness.
I've been surprised that the GIMP isn't as difficult to use as I had previously thought. I particularly like the preview feature for saving JPEGs. I can use a slider to set the quality of the image and see a preview of viewing the file before saving. In the past with less capable software I used to go through a laborious process of saving a JPEG, viewing it in a separate program, and then repeating until I achieved an acceptable balance of file size and quality. Now I can adjust the slider and see what the result would be in terms of both quality and file size.
Recently I was doing sys-admin work for a company where Windows was the desktop standard. Often we had to send around screen-shots of various problems and the way of doing this was to use CTRL-PrtSc to copy an image of the window in question and then paste it into a MS-Word document because the Windows image had no other program that was capable of dealing with image data. One significant problem with MS-Word is that it doesn't allow expanding the image or modifying it, so you see it at about half the original resolution. It seems that what I should have been doing is pasting the image data into the GIMP and then saving it as a PNG file (PNG is loss-less compression which avoids the ripples you get from JPEG compression of text and it's also very efficient at compressing the regular data that is typical in a screen-capture). PNG files would take much less space than MS-Word documents and allow efficient viewing by many programs (including web browsers which are on all machines).