I don&#x27;t do it on the same basis, but I do have decay batches like that.<p>I&#x27;ll buy a bunch of undergarments that are frequently used so that there&#x27;s a whole generation.  When I feel a need based on function I buy a new generation.  If the old generation still has some service life it becomes &#x27;houseware&#x27; (the &#x27;holy&#x27; stuff worn only about the house).<p>Socks usually get culled completely once they have a hole of any size (evicted from the generation), while new generations tend to happen when parts wear too thin for comfort in shoes.