Kit bashing.
Scratch building.
RMwebing.
LNER OO gauge.
Some LMS and GWR.
Building exhibition layouts.
Long walks in the snow at night.
Throwing rocks at campers and avoiding humans with cameras.
I did get rid of the carpet and put in nice hickory flooring. SWMBO went and brought a rug (you know what women are like for soft furnishings) Needless to say, the carpet monster is getting it's own back!