I really don't want anyone to give us money at all. I don't like it. I COMPLETELY understand it, but I don't like it and when I've been to weddings with boyfriends (their friends) who've given cash I've then bought presents also (which have gone down really well).
We have a house each, so don't NEED many things, but there are some things we'd love. I would never choose a shop to manage my list because, for example, I have friends who work as mums and their income is limited and I don't want them to look at the list and realise they can only afford a spatula (or whatever). My plan is for us to get together a list of anything and everything we're after (we seem to be short on egg cups for example, and both of us inherited knives-from-mums and need a decent set) and ask my sister to administer it in spreadsheet and simply send out the list to anyone that wants it, with lines through the taken things. Then if people want to buy 'the thing' from Harrods or from Wilkos, we still get the thing we need and they can buy it on their budget.
Will this approach confuse people too much? The info will be in the invite and on the wedding website. And for those that do prefer to give cash, we can buy things we didn't get from the list.