Hi colony Mike ;)
Embed a rare earth magnet in them - she can just open them with any random bit of metal to hand, while you pick out the handle style over the next 5-10 years.
Actually, now I've put the idea in my head, I might do that to the bedroom furniture - I think we're on the 4th different set of handles in as many years. She can rotate them out on a weekly basis without me having to do anything.