How do you guys stay active?

I'm up and moving around when i'm doing some chores during the occasional down time but otherwise i'm sitting all day. How do you keep active? Are you doing exercises at home? During the non winter seasons I was going for walks before and after work but it's SO cold and i'm already overweight I just don't want this to worsen. Are you setting alarms to get up and move?

Thank you in advance!