Inspired by seeing Blur last night who played an early MLIR b-side 'Young and Lovely' in the middle of their greatest hits set. It's a good song that would of improved Modern Life.. if it was included.
Anyway pick a great B-side from a band whose back catalogue you know really well. Preferably not infamous ones but some real hidden gems.
Also pick a track from the album if was a b-side of to be replaced by it, to improve said album.
Replace 'Turn it Up' off Modern Life is rubbish with 'Young and Lovely'