I find altering environment to be much (like, much) more effective than altering behavior. Clothes chronically on the floor somewhere[1]? That spot needs a hamper. Toddlers' toys all over the place and spouse vetoes throwing out like 80% of that junk? Bins, in child-locked cabinets. Time spent cleaning massive toy messes immediately down by well over half, for a one-time cost of a few dollars, time spent policing how much crap the kids are spreading around the room (a hopeless task anyway) dropped to nearly zero. Notice you're (both) not managing to get the kids' clothes sorted and to their dressers/closets? Kid- and clothing-type-labeled pull-out bins (god I love bins) on shelves in the laundry room, basically eliminating any actual need to cart the clothes from room to room (it just makes for more work later) and putting the output location closer to the input. Problem reduced from "OMG this is really becoming a problem" to "it's not perfect, but WOW is this better". Etc., etc.

Altering behavior's rarely worked for me. My own, sometimes, my spouse's... well, pretty much never. So if it's the effect you want gone, it's often possible to make it go away really fast and with little fuss (often praise!) through a change in your environment. I'm sure lots of people of both sexes put this into practice, but I can say with certainty that it just never, ever occurs to some, and they'll put up with and complain about the issue indefinitely if someone else doesn't spend a few bucks and a few minutes making it permanently disappear.

[1] just taking your example, not implying that the solution was appropriate in your case or that it wasn't attempted and failed—to be clear, this approach definitely can't solve every problem.