With all the new paint-on inks, my workmat was getting really dirty, and scrap paper only goes so far- this handy way to keep ink useful is great. You can put just a touch of many different inks and then close the lid after use to reuse later. They eventually dry out, of course, but the inkwells are just large enough to accommodate a few splotches of the inks you will need at one time so you can keep the original jars closed.
I got this Distress Palette from a scrapbook/craft friend who wasn't using it. I figure it's a good tool to have to use not only for Tim Holtz distress re inkers. But also you can use it for water color or even your paints too. I haven't use mines yet but will get use of it when I do.