I use a cloud (Dropbox) folder called "inbox," where I place files (e.g., PDF) until I decide which non-cloud folder I will permanently move the file to.
Is there a word other than "inbox" for such a temporary storage space − similar to "holding cell" (but not a physical space), "cache" (but not hidden file), "purgatory" (but not a place of suffering/cleansing) or "in take". I could not find a word that quite fits; "hold" is, however, boring. I just want one word meaning to hold something temporarily until I figure out what to do with it or put it away.