The houses in Whiterun and Markarth have alchemist's satchels a convenient way to manage your alchemy ingredients, but Proudspire Manor, the most expensive house in the game, is missing it. Sorry but the mess of bookshelves is not an adequate replacement for the satchels.

Is there a way via the consoles to add a satchel on top of the alchemy lab, or on the stool next to it?

Or am I going to have to wait for the creation kit and mods to do it?

So I'll take that as a "I'm stuck using whiterun and markarth houses for alchemy until the creation kit is released and someone mods satchels in"