What he meant about the liches is, if you disturb the tombs, you can't make the 2-for-1 trade. As to the "barrel trick", far as I know, people just use them to store stuff, they don't carry the barrels around with them. I could be wrong about that, though. Personally, I just used the two chests in the starting house in Alertoth for storage.
Nightowl2
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