ride quality

[rkvin21]

I have a stock 2012 toyota yaris se auto. I used to want the firmer suspension that it came with but now my driving habits have changed and now I want the most comfortable ride possible. What can I do to make the ride smoother so I dont feel every bump and feel the harshness of speed bumps no matter how slow I creep over them? I am open to anything right now. I was thinking of air suspension but I dont want stock quality, I want better and as close to stock quality as possible. Please no posts to just get a luxury car. I like my car and just want to make it better.