A stage is equipped for whatever production is happening at the time. Only the essentials for a particular scene are placed in the valuable square footage of the stage. Every item has a purpose.
So many times we are merely warehousing possessions. Memories, just-in-case items, things we bought off an infomercial that didn't work out like we planned...
Shifting our mindset to look at our space as a stage means we only keep what is needed to stage the production that is going on right now.
The room only holds the items that serve the purpose of the room. (ie. no "someday I'll iron this" or "someday I'll file this" items in the dining area.)
The cupboards no longer house that pan used to make that one thing. They hold what we need to make dinner each night.The closet only has the items we are wearing frequently right now in this season.
Do we need warehouse space? Sure. Garages, attics, under-the-bed boxes and really high cabinets are great for this. But we should limit what we warehouse to the actual "warehouse space" we currently have available. Keeping all of the things from past productions is an expensive hobby. (Which is why theatres don't do it. They have to pay monthly for the square footage. A common practice is renting items or borrowing from other theatres.)
The best part about shifting our mindset and changing our approach is that our space becomes more vibrant. It loses that dull, warehouse feel and picks up excitement.
Maybe more importantly, there is likely someone right now who is living a production that requires the stuff we have only been warehousing. By releasing our things and giving them to someone else, we can make their stage production a whole lot better. (Said as one who furnished my house via thrift stores and hand-me-downs for the first 10 years of my marriage. I'm super grateful that many people set some really awesome things free!)