Although I've picked up a few things from Goodwill in the past, I've never given back, and so Goodwill looks like the obvious place for my overstock to go. One of my favourite things about goodwill is that the y don't just jack up the price because something is "designer" like some of the other centres that accept clothing donations, so I am confident that my clothing will find a good home there, or go to someone in need.
As per the Goodwill smart donating tips, I'm going to need to wash everything I donate first (dry clean items will likely get a hand wash unless they are only suitable for drycleaning), so that will be a few loads. There may also be some expense for the drycleaning, but I won't know until I itemize everything.
Other steps I will be taking to cut down my wardrobe are to give things to friends or siblings, and to simply compact the amount of space I am using to store my wardrobe by being smart about where the items are stored and why (I have been dressing far more casually in the last couple of years, so my suiting and suit accessories need to find a less prevalent spot to roost for now).
For my clothes that have sentimental value, I will take photos of them on a flat surface prior to disposing of them in the selected manner.
For my clothes that have been hanging around even though they are getting to the point that they are too damaged to be kept, they will make friends with the trash.
Time to get started.