Why is my wife so clumsy and careless?

My wife is driving me crazy with her clumsiness and inability to handle anything to do with money or simple domestic affairs. Just before I had to go to London for an interview ref a job in Hong Kong, she accidentally threw away the trousers from my suit. Needless to say I had to replace the suit.

We went out for a drink together and she spilt not only her own cocktail but also my drink and ruined my clothes. Recently she changed her car insurance and cancelled the direct debit on our house insurance by mistake.

 I had to call the insurers to put it right. Also she forgot to tell her former insurers she wanted to cancel their policy therefore incurring a hefty service charge. I feel like taking charge of all our finances but don't want to be a control freak. I love her so much, but I just don't trust her because she is so clumsy and careless. What should I do?