carpe diem (?.)

• capitalize on
• cash in
• conspicuous consumption
• dissipation
• extravagance
• improve the occasion
• incontinence
• intemperance
• lavishness
• leaking purse
• loose purse strings
• make no provision
• not be behindhand
• overgenerosity
• overgenerousness
• overliberality
• pound-foolishness
• prodigality
• profit by
• profligacy
• profuseness
• profusion
• put to advantage
• reckless expenditure
• reckless spending
• seize the day
• squandering
• squandermania
• take advantage of
• turn to account
• waste
• wastefulness