First of all, I don't use ClickSaver, or AOMD, but I'm tempted to load it.
I'd like to see two or three things.
1. An online consolidated auction. Yes this could be at ICC HQ, but I'd put it in three rather politically aligned towns instead. Something with a browse feature, and a minimum bid feature.
2. OR a web-based auction system instead. Basically 'port' ebay right into the AO website. A single command in-game to /sell (insert item by dropping it on the talk-bar) 24 (hours), with purchases made on the web-page getting directed to the players bank. After all, we can already look at (some of) our characters information on the site. We can "log into" the auction sub-site with our player information, and character selection, to shop.
This would work pretty well, I think, as with AO, you CAN alt-tab to other programs, (such as web sites.)
3. An in-game mail system, possibly with postage fees, possibly with postage fees that increase if the mail has to cross political boundries.
P.S. on bullet 2, I mean using AO credits to buy things, NOT RL currency, (in case someone thinks otherwise.)