Get together with a friend to make this the year you conquer clutter. Set goals and have a weekly check-in phone call to see how you're getting on. Encourage each other without getting too competitive and have a good laugh. The stuff we hoard is sometimes ludicrous - my brother found a drawer full of old broken and decrepit shoelaces! Having someone to cheer you on is a great boost when you're trying to achieve a goal.

Good luck!