If there's a way to conveniently store all of the Dominion cards and the tokens, that would be very useful.
Here's my storage solution:
http://www.staples.com/Solo-Pro-Laptop-Attache-TItanium-AC100-10-/product_555681This solution fits every expansion, including Empires, everything sleeved, all of the randomizers and blanks, and all of the mats. And a tablet with the randomizer app. And there's still room for another expansion or two, because you could theoretically make a pocket for the mats that would fit above the cards (there's a bit of vertical wiggle room.)
Gut the inside, other than the layer of protective foam around the entire interior. Jam in a few strips of basswood to make the columns and you're all set.
A small fishing tackle box fits inside with all of the tokens, including Adventures supply tokens, coins, victory and debt.
For table organization, I just use piles. Base Victory / Treasure all go sideways, then two columns of 5 Kingdom cards. Events and Trash to one side, Bane/Travelers/misc. on the other side. Makes a slightly wider than square rectangle with playing space on all sides even on a smallish table.