For me, an inventory this size can create delays when logging in, after crashing (because it often needs to rebuild the inventory cache), and freezing while changing outfits. My dancing alt with a slim trim inventory? It's like comparing Olympic runners to those laps I had to do in high school gym class.
Size does make a difference when it comes to inventory! SL's general recommendation is an inventory under 100,000 items. As a choreographer I tend to accumulate a lot of stuff - costumes, textures, set props, animations, etc., and don't forget SL counts folders in your inventory count too. My goal is to at least reduce my inventory and be able to find the great stuff I have and forgot about!Clothing Mesh Models & Sizes - Do you really need to keep them all?
I have a Maitreya body, which has become the unofficial standard for female mesh bodies in this dance world. I have -582% intention to switch to another mesh body. This by far isn't the only one though and creators wanting to make their outfits available to everyone will often send a Maitreya size, Freya, Slink, Belleza, TMP, standard sizes and more! Instead of 1 dress, I get 12 - only 1 which I can use.
Not only does this bloat my inventory, it makes it harder for me to find the one I need to wear.
If you're looking to reduce your inventory, this may be something to consider. Do it as soon as you unpack a new outfit and you'll find your inventory easier to maintain.
Happy dancing!
~ Eva