Thank you for the detailed post to explain about Minimalism and sharing your experiences about how to practice minimalism in your life.
I live in a small place too so every now and then, I would do an inspection around the flat to check if there are anything that we don't use and give it away. I find it is helpful for our life.
I also moved closer to my office so I just need to spend 30 minutes everyday to walk to work - both good for enviroment and myself.
For unwanted gifts, I often ask people I know if they would like the items or else I just donate it.
Thank you for sharing your own minimalism experience. At least I now have a bit of an idea on how to proceed with decluttering unwanted gifts.