There's a reason Swiffer WetJet has lasted this long, because their products really work! I love that I don't have to deal with a dirty bucket of water and can just toss a wet pad when done. These are best for cleaning up right after a spill, or if you have light foot traffic. If you're waiting months and months between washing, then you need a deeper cleaner because you're waiting far too long! You should never need to go that long in between anyway because of how fast it is to mop your floor with these, and the refills you can find at any store.