Most satisfying system change in 2017?


What was your most satisfying addition or subtraction for your audio system this year?  Looking for changes in gear, set-up, or listening environment.  What floated your audio boat in 2017?
knownothing
Additions...
Multibit upgrade to Schiit Gungnir
Schiit Freya
First Watt F7- now music from the Silverline Prelude Pluses finally sounds wonderful

Upgrading from unshielded Volex power cables to unshielded Signal Cable MagicPower cables on all my sources, phono preamp and main preamp.
@uberwaltz Was the Exogal fuse swap difficult ? What size and spec would other comet users need ? Thanks,mike.
Upgrading from Golden Ear Triton One to Golden Ear Triton Reference speakers. Made possible only because I was able to privately sell my T1s at a good price.