Too many women know a proposal’s coming because their boyfriends neglected to do some cover-up work. So if you buy a ring online, clear your web history! And don’t leave bank statements lying around—a $5,000 debit is going to look mighty suspicious. If you already share a bank account, open a new one for yourself several months in advance so you can secretly save up there and withdraw from it without her realizing. And above all, store the ring someplace safe where she’d never go looking, not in the coat closet she opens daily.