Step 1) Cut pallet boards in stair step lengths as shown above for the Christmas tree branches. (divaofdiy.com)
By set of stair steps number 3, I was still gripping the railing and watching my feet carefully, but apparently that wasn't enough. (bowsandsequins.com)
This is why the temperature data appears as an upward stair step pattern, not a smooth curve. (cfact.org)