I don' t get it either , And I Swear My standards are not too high anymore And I de clutter weekly.
But Unless I Stay on top of stuff day in and Out - it all goes to Crap.
Relax today , and Pay heavy tommorow is the way it goes
Oh and I Hear you on , how the heck to find the time to do any extra housework when , the Basics keep coming undone.
I think the only way to keep it clean with kids around is to Be on top of everything constanly. How I Dont' Know ....

But ....
I Don't see any other way.
I Have tried the timer thing and the time limiting thing too. Trust me I Don't want to spend My Life cleaning , but We do need Clean plates , and A Cleaned off Kitchen table to eat a Meal. So I try.
With My House there is always something going on ,
Ok , so i Have 20 mins to do all the dishes and Clean the counters.
Well About 5 mins into my Frenzy My 3 YO Spills his juice all over himself , And well there goes the kitchen , and here comes the hose down and changing clothes of DS -
Also During this time My Cat throws up on the floor ,,, so off to Clean that up , then the phone rings , then the doorbell rings , then I see its time to start dinner. Oh and the Kitchen Did not Get done.

It
is stressful.
Most days the only clean things are my bathrooms , and a few loads of wash.