Nephew is marrying his long-time partner, on the invitation under Gift list there's the nice 'the most important thing is you can celebrate with us' type of thing, and that if we want to give something they'll gratefully accept a small contribution to the honeymoon'.
It's quite a while since I've attended a wedding, and never one with a monetary gift request so I'm a bit unsure what sort of amount is appropriate nowadays. I certainly don't want to be mean but don't want to appear an embarrassing lady bountiful either iykwim. £100? Higher or lower?