A better yay
experience
using yay for upgrades
yay -Syu --combinedupgrade --color auto --devel --noconfirm --timeupdate --builddir '/tmp/yay'
this performs a more-or-less unattended upgrade of all pacman and AUR packages, using a /tmp area for build temp files.
cleaning yay's cache
yay -Sc
this is a little annoying to discover, and package/build caches can get large. *Don't do this while doing other yay operations*