As I recently wrote, at the end of the year I go through emails, newsletters, subscriptions etc. and jettison that which I can. It is now 1-2 months since I started that process: so far, I have not re-subscribed and I have continued to de-subscribe. So far so good, still too many emails [particularly in a political year] but fewer than in the past.
Another process I have started - especially since the snows/ice/fog tend to keep one quietly in doors - has been to go through and organize my various 'digital assets' and delete whatever I can. I have now used some larger [2-3TB] hard drives as storage for  music [iTunes, downloads, CDs saved from disk, etc.],  Client items [no longer needed currently but securely saved for the required time],  Financial info,  general reading, etc. Actually I'm focusing on getting the music onto a drive so it's saved somewhere and I can delete items if I don't really need them currently.
I did have an epiphany the other day, though - I have PDFs from various articles, readings, etc. dating back at least 10 years and, if I wanted to really search for them, perhaps farther back. There is no way in heck I am going to EVER be able to read those PDFs! So, I'm also in the process of  getting rid of duplicates [I do tend to duplicate items 'just in case', and don't regret doing that] and  re-saving the most interesting, pertinent, useful ones and trashing all the rest. If I haven't had cause to read an article since 2013, saved in pdf to disk, it's obviously not needed now == it's rather freeing to be getting rid of things I will never read, much less find time to read them = and which are findable on the Internet anyway.
So, another suggestion - don't let these things pile up so you have to do what I've been doing and clean things out. And for your pleasure on a grey, snowy day = sunset in the fall, Urbandale, IA.