Polite suggestions - (으)면 어때요? => "How about . . ."

Politeness is an important aspect of the Korean language. The following list indicates the increasing degrees of politeness.

• -(으)면 어때?
  => "How about it?" (nonpolite) 
• -(으)면 어때요? 
  => "How about it, please?" (polite but informal) 
• -(으)면 어떨까요? 
  => "Would it be all right to . . . ?" (more polite) 
• -(으)면 어떻겠습니까? 
  => "Would you mind if . . . ?" (polite and formal) 
• -(으)면 어떠시겠습니까? 
  => "Would you mind if . . . ?" (polite, formal, and honorific)
• 왕복표를 사면 어때(요)? 
  => How about buying a round-trip ticket? 
• 10 시까지 기다리면 어떨까요? 
  => Would you mind waiting until ten o'clock? 
• 대전에서 주무시면 어떠시겠습니까? 
  => Would you mind staying over in Taejn?