I thought I'd try a generic brand of the pads that attach to the Swiffer cleaner (the one with the cleaner in the bottle that attaches to the handle). They don't stay on. Where the velcro is on the Swiffer, is not where they are on the generic ones, at least not the ones I got.
My opinion, buy the ones from Swiffer. Also, I absolutely LOVE my Swiffer Mop!