Two requests, pick whichever is more reasonable (or both if you really like them!):

Syntax:
Inquire <shopkeeper>
Purpose:
Allows a player to ask a shoppie what wares they traffic in/specialize in so they know which barter is most effective for them. Also lets you know what stuff you can sell to them without the need for trial and error.
Sidenote: Potential commerce xp skill?

My other request
Syntax:
Pour <container1> <container2>
Purpose:
Allows you to fill a second container using a first by transferring 'drink' charges from one to the other. Possible uses include divvying out smaller amounts of a drink for RP purposes at the Inn, stockpiling a rare favourite drink for RP purposes into a larger resevoir, as well as allowing orcs to carry around one giant barrel of blood.
Sidenote: Container1 transfers as many drinks as it takes to fill container2, if Container1 doesn't have enough, transfer as many drink charges as Container1 contains. Container2 must be empty, or be of the same drink type that will be recieved from Container1 (ale into ale, but not blood into ale).