Possible Clues:

• To do this may make you a warm man when things are not so hot
• I do this to be prepared for a cold - and a rainy - day
• Buy shares, though not fully covered, it seems
• Do this for interest in 1 down
• It could be interesting to do this with underclothing on
• Buy bonds, e.g.
• Lay out money on trendy waistcoat
• Be bullish
• Lay siege wearing inappropriate clothing?
• Put money into underwear