Do you use recycle bins - either real ones or virtual ones? How much and how often?
I use my real recycle bin and put it out for collection mostly every second week unless it's not very full then I leave it to the next collection date.
I use virtual recycle bins quite often to dump unwanted data and files to permanently erase.
It's quite satisfying to select galleries/collections/folders containing many files and drop the whole thing(s) into the virtual recycle bins then empty the bins to 'gobble up' the rubbish in the bit bucket.