7 poems in the poetic edda

1. Völuspá
2. Hárbarðsljóð
3. Lokasenna
4. Völundarkviða
5. Grímnismál
6. Hávamál
7. Alvíssmál

7 Greek Nymph classifications

1. Dryads - Tree Nymphs
2. Leimakids - Meadow Nymphs
3. Oreads - Mountain Nymphs
4. Naiads - Fresh Water Nymphs
5. Nephelae - Cloud Nymphs
6. Lampades - Underworld Nymphs
7. Hyades - Rain Nymphs

7 cars named after animals

1. Ford Puma
2. Dodge Viper
3. Fiat Panda
4. Mitsubishi Colt
5. AC Cobra
6. Triumph Stag
7. Nissan Bluebird

7 things I use every work day

1. Flex Builder
2. Firefox
3. puTTY
4. Coffee Machine
5. The Bakerloo line
6. My Bike
7. My Brain

7 costliest US Atlantic cyclones

Cost adjusted for wealth normalization

1. "Miami" - 1926 ($157 billion)
2. "Galveston" - 1900 ($99.4 billion)
3. Katrina - 2005 ($81.0 billion)
4. "Galveston" - 1915 ($68.0 billion)
5. Andrew - 1992 ($55.8 billion)
6. "New England" - 1938 ($39.2 billion)
7. "Pinar del Río" - 1944 ($38.7 billion)

7 revolutionary leaders

1. Che Guevara
2. Vladimir Lenin
3. Pol Pot
4. Fidel Castro
5. Napoleon Bonaparte
6. Mahatma Gandhi
7. George Washington

7 stock market indices

1. FTSE 100
2. Nasdaq-100
3. Dow Jones Composite Average
4. BBC Global 30
5. MSCI World
6. S&P Europe 350
7. Nikkei 225