Our Favorite Lifehacker Posts of the Week

This week Lifehacker has spooky Halloween backgrounds, advice on getting ready for winter while being cheap, and pointers on places to go for free movies.

Avoid work out injuries by running like a hunter
Save money this season by "winterizing" your home
Sit properly to stay awake and energized at work

Keep your hair flake-free with Aspirin
Dress up your desktop for Halloween
Stream classic films for free

Put together a winter emergency kit
Get more out of the battery in your Windows laptop
See side-by-side comparisons of promotional hotel images and reality

Set up Windows Home Server to automate backups and sort out your media
Make the most detailed accident sketches possible
Turn your desktop into a Left 4 Dead looking interface