Need to take care of my knees

I will take better care of my knees by vowing:

• I will not do high impact during cardio jazz. Low or medium only. No matter how good the song is or how much I want to do the bouncy moves.
  
• I will not use my left leg (therefore knee) to step onto the landing at the base of the stairs in my house. Right leg (knee) only.
• I will read the Knee book Canister Vacuum gave me.
• I will buy the knee ice packs for both knees and use them after every gym class.
• No crawling into bed on my knees.
• Use my arms more to help myself get out of chairs.
  
• I'm not sure what to do about climbing the stairs at work. To climb them or not to climb them? That is the question indeed.