[Usecase] Keep Chrome from needlessly chewing up GBs of worthless cache files

## HowTo

sudo modprobe nullfs
sudo mkdir -p /media/sinkhole
sudo mount -t nullfs none /media/sinkhole
rm -rvf ~/.cache/{chromium,google-chrome}/Default/Cache
ln -s /media/sinkhole ~/.cache/chromium/Default/Cache
ln -s /media/sinkhole ~/.cache/google-chrome/Cache

## Before

$ du -h ~/.cache/chromium/Default/Cache/;
747M /home/tsmith/.cache/chromium/Default/Cache/
458M /home/tsmith/.cache/google-chrome/Default/Cache/
1.2G total

## After

0 /home/tsmith/.cache/chromium/Default/Cache/
0 /home/tsmith/.cache/google-chrome/Default/Cache/
0 total

It also will save on SSD wear-and-tear, and you won't even notice a performance drag as everything's stored in memory anyway.