Answer:
Keep doing me to avoid lens dryness
What insect does a blacksmith manufacture?
I am enjoyed by some despised by others. Some take me for granted some treasure me like a gift. I last forever unless you break me first.
How many letters are there in the English alphabet?
After you go through a fall, I will take over. All life will stall, or at least grow slower. What am I?
No matter how little or how much you use me, you change me every month.