The idiot bloke who runs the local sports centre has given me grief for bringing my 20" dahon inside. . . I figure bagging it will shut him up, so I appreciate views on which bags offer most utility.

There's more types on ebay than I'd realised, including a "Dahon Mini Bike Sling Sack".

Perhaps an Ikea bag would be fine.

The official Dahon bags are very pricey and I'm not exactly rolling in cash.