The words and phrases below each conceal related words.

1. SERIALIZE
2. HAPPY ENDINGS
3. GRAPE SODA
4. SHRUB LEAVES
5. ANTIQUE DOLL ARTICLE
6. RADIO WAVE UROLOGY

Answers:

Each word or phrase conceals a monetary unit:

1. seRIALize
2. happY ENdings
3. graPE SOda
4. shRUB LEaves
5. antique DOLL ARticle
6. radio wavE UROlogy

Credit: Alan Olschwang
MONEY CACHE (#1-3)