OK.I'm actually looking for tips on planing a kitchen not bringing up children (been there and done that)
Grid switches are grand - they look a lot better than a row of FCUs or 20A plate switches which are the alternative once you've decided that you'd rather not have to crouch down and rummage through pots and pans and tins of beans and blimey-how-long-have-we-had-this-soup to get to a socket.
I advise placing them where they won't get mistaken for light switches and where those not responsible enough to be allowed unsupervised use of them won't be able to reach them.