I think the Saran Wrap is what we would call clingfilm here; I tried that a couple of times, didn't work but maybe it wasn't fully airtight as I didn't think to push it down on a plate - will try that (though I'm now used to eating a whole one each day, so I'd probably miss it). They are medium to small ones, not the larger size so I don't think I'm being greedy.
Sorry to be a bit slow - I can't quite figure out what I'd do with the perm papers though??

Having said that, it is close to 1am here, and I think my brain must have gone to bed without me a few hours ago