• Advertising vs. Facts – Tell the difference between marketing claims そして verified product info.
  
  
• Reliable Sources & Bias – Identify trustworthy reviews, spot bias or incentives, and check multiple sources.
  
  
• Total Value – Compare unit price, hidden costs, durability, and inflation to judge real worth over time.
  
  

Smart Decision Strategies – Use delay-and-save, weigh wants vs. needs, and match spending to personal 価値観.