I saw this poster on a train after a previous Christmas: While you may have an unwanted gift or two, they may be great gifts - just for someone else. Consider re-gifting to someone you think will appreciate it. 1 in 4 Aussies do this . Or sell it online. The Gumtree website experiences a 30% jump in posts just after Christmas. For some gifts, giving them to charity is also an option. It's unfortunate that many gifts are a waste of the giver's time / money. But it would be more of a waste to throw them out - and have them end up in landfill - or to have them gather dust at home (which is kind of the same thing).
Looking for a life of less clutter, less expense and more meaning.