I don't really have anything for best...sometimes I wish I did.
It's a combination I think, of being overly self-indulgent and not having the funds to buy anything other than for use.
I think there is a happy medium. I don't think there is anything wrong with saving things unless you think you're taking it to the extreme, things do eventually get used and don't stay as some sort of strange cupboard ornament. Like a nice food, that you save but by the time you deem best has come its already gone off.
Maybe think about why this item is for best. Skin care products, open that tub straight away. If you like it buy a couple more, then there is no fear of it running out.
Nice clothes, are they so much 'nicer' than your current? Make an effort to gather a wardrobe of the higher quality item, then the nice is your new normal.
I might have try this in the reverse....I waste so much money on crappy stuff, then feel like I can't afford actual nice things...
Do you feel you don't deserve the nice things you've bought? Were you always told that you've wasted something when you've used something nice?
You do deserve it, and it's not a waste to use the things you enjoy.