What are some tips for handling oxygen tubing?

I am fairly active and use 100ft of tubing so I can walk freely around my home. However, it constantly kinks and I spend a lot of time smoothing out the tubing. Once kinked, it's almost impossible to stop it from kinking in the same spot all the time. I did come up with a possible solution: I cut a straw lengthwise and wrapped a portion of it around the tubing. It's working! I also use a POC. I can no longer cart it around, so use a walker, primarily to hold that POC. The tubing is so short, so I added 25 ft. It gets tangled up a lot! I'd like to know how other folks manage activities while on oxygen. I know that at some point I won't be able to be active, but for now, I can be. I am nearly 83.