Sonic Electronix cuts an extra 25% off headphones and earbuds via coupon code "25PREHDP", with prices starting from $18.72 after coupon. Even better, these items are all eligible for free shipping. Some best bets, each with prices after coupon:
Nuforce NE-600X High-Efficiency In-Ear Headphones for $18.72 (low by $6)
Grado SR80i Prestige Series On-Ear Headphones for $74.25 (pictured, low by $25)
What are you doing for fun that you could also do for money? Here are some ideas to get you thinking, and tips to get you started.