If you want to sell your gently used items:

• Garage Sale – these can be fun, but are a ton of work.  Here is a great site to check out if you are interested in hosting your own sale. 
• Craigslist.org - I’ve been using Craigslist.org for years and love it.  It is free to post items, and then you can arrange for a meet up to exchange the goods for $$.  There is also a section if you wish to get rid of your stuff for free.

If you want your stuff gone, and don’t care about cash:

• Freecycle.org  When we moved cross country we obtained our moving boxes from freecycle.org and then gave them away to be reused one more time once we arrived to our destination.  We saved tons of money and the homeowners had the advantage of instant pick up, and knowing their stuff went to a good use. 
• Donate to Goodwill, Salvation Army, etc. I love knowing that items that I once loved are going to local families that can put it to good use.  Keep it local and give your stuff to the charity of your choosing. 

Weird stuff that is only worth recycling:

• Earth911.com – Just fill in what you want to recycle, your zip code, and wiz bang you can dispose of batteries, paint, electronics, etc properly and have the peace of mind that it is out of your house. 

By reducing our consumption of ‘things’, we will reduce our draw on energy and water, and keep stuff that could be repurposed, or recycled out of landfills.