I have to say I cheated - Nicholas' costume is in the front and you can see it for free, the exhibition beyond is small and by peering from the front you can see quite a lot, I find uniforms dull however glitzy so I just took a good look from afar for free and called it a day. The jewellery gallery is fantastic, though, faberge and all. But I am spoilt as I live just 20 minutes away from the V&A.