Put obstacles in his way; something he can't scale or is not interested in, a non-poison plant, toys he is interested in otherwise, a shorter obstacle (in otherwords put the entertainment center higher).
Depends where you live. Every Country/State has cheap wood, ...in the USA (Northeast) where I live, I would choose pine. Easy to work with, and can take a variety of stains.
First, take and record the babies temperature, anal temperature will be one degree higher than oral temperature. Give the appropriate dose of Tylenol or Iburprofen (Advil) for the baby's weight. If...