Thank you to William in Pittsburg who is planning on moving to Ireland towards the latter part of 2015 for sending in this question.

I regularly use Craigslist here in Pittsburg to buy and sell used furniture, garden equipment, tools etc. The Irish Craigslist site does not seem to have the same level of popularity. Is there an alternative to Craigslist in Ireland?

There are plenty of options available in Ireland for finding used goods. The websites below have listings in a wide variety of categories including furniture, clothing, DIY gear, baby goods, autos, sports equipment and more. Some charge a fee to place an ad, but for the buyer it looks like it's free to browse the ads and contact the sellers. In some cases you may need to sign up for the site to contact the seller.

http://www.donedeal.ie/
https://www.buyandsell.ie
http://www.adverts.ie/

​Also, lately I am seeing a lot of 'local'​ Facebook groups where people advertise their unwanted items to people in the group. Some people are even offering things for free in these groups so it's worth searching for these groups.

Lastly, I recommend giving Groupon Ireland a try for certain items. They do have a Home & Garden section, as well as various other general categories, and they often have very good deals on brand new items.

If I missed any great places to buy/sell used goods in Ireland please let me know or add a comment below.