dropped them, fast-traveled to imperial city, waited 4 hours for the stores to reopen, sold stuff, fast-traveled back, and they were gone! that's not even 24 hours!
i did have a previous save, i just quit without saving when i saw all my stuff was gone, but not like i could get any other outcome. i cant possibly carry them all and from what i've seen, if i do just leave them and come back they'll vanish all over again.
What you have not realized is Fast Travel does NOT remove the in game time it takes to walk/run from one marker location to another.
http://www.uesp.net/wiki/Oblivion:Fast_Travel#Fast_Travel
You might have only waited 4 hours in the IC, but you need to add on the time in game it takes to do the fast travel return trip from Chorrol to the Market District in the IC and back. That time, I am betting is what took you the three days in game.
What you need to find is a non-respawning container, and find it ASAP in the very earliest stages of the game. What the devs forgot, again, is to include in game a way for the PC to readily ID a safe container.
Spoiler http://www.uesp.net/wiki/Oblivion:Containers#Safe_Containers
You need a safe container near the Market District, so you can build your initial hoard and have it available for easy transport to the Market District, when you are a snail paced newbie weakling who can't carry much at all, for selling off for cash, to buy and fit out the IC Waterfront Shack.
Jenifur Charne