I have a tendency to put things down in stupid places and just leave them there. Over time the clutter builds up which means eventually I'll have to spend time

I have a tendency to put things down in stupid places and just leave them there. Over time the clutter builds up which means eventually I'll have to spend time sorting it out and I also can't necessarily find things when I need them. My "brain hack" for this is to instil a habit: whenever I put something down I ask myself "is this where I want this object to be forever?" The answer is usually no, so I put in a place I'm happy for it to stay forever.