Here's what I feel Retainer's should do while I"m logged out:

Collect tells I receive: The player "Hiir Noivl" is not online but your /tell has been received by her retainer "Bob"

Repair my gear automatically when stored for a certain amount of time.... *hope this one is not too controversial but I hated having to pull stuff out of retainer, repair it and then put it back so I can sell*


Batch transfer items, while I'm away. *example: I can set my retainer to auto refill my stock so that my store is always full*