Discardia isn't just about things. You can build up too much of
intangible stuff you don't need as well. Personally I've found that
it's harder to get my head clear when my house is a chaotic mess, but
if you need to tackle the head first, just go for a walk and get
yourself somewhere you can sit and think for a bit.
I recommend the beach, but a hillside, park or quiet corner at the
museum can do the job as well. Go where you won't hear other people's
conversations or see any advertisments.
Sit and be still.
[Read more in Internal Clutter]