Parents Magazine ran a great piece about this option and I encourage you to read it. The best thing about experiences is this is something your recipient will remember...probably forever. My sister-in-law gave her niece a day in DC with a disposable camera. (This was before cell phone cameras--today it would be even easier!) This time spent with a loved one is so meaningful and lasts way beyond a toy that many times only adds to clutter.
Lots of experience ideas are online. Become a tourist in your own home town! Go to the beach or the mountains--just the two of you. Go camping, take a cooking class together, or think of something that would be special just to this person.
Every time I have asked my nephew if he would like to volunteer somewhere with me when he visits, the answer has always been yes. He is all smiles when we leave to go get lunch afterwards and talk about our experience. He says he feels good--ya know, me too! He came to visit recently and I asked if he would like to go to the convention center to pack meals for the families in Puerto Rico hit by Hurricane Maria. He immediately said yes. He is 29. This has been his habit his entire life and one of the many things I admire about him. I think you will see the same with your kids, your grandkids or your loved ones. Cut the clutter, add to the love