I'm trying to follow the process of determing these clues. Please post your train of thinking!
1. ?
2. Car lover's paradise -- NASCAR -- Jeff Gordon playing cards
3. Oh, say can you see -- flag -- American flag - New
4. Authored by Jefferson -- Declaration of Independence -- Off-white feather quill
5. ?
6. Festivities and pyrotechnics -- fireworks -- Macromedia Fireworks Flash MX
7. Taxation without representation -- Boston Tea Party -- Antique rose-colored porcelain tea kettle
8. A car or an actor -- Ford -- The Fugitive DVD
9. Play the squares or see the stars -- Hollywood -- movies -- Movie projector
10. 1800s express mail -- pony express -- horses -- polo -- Ralph Lauren polo shirt
11. ?
12. ?
13. ?
14. A president, a place, a car -- lincoln, town, car -- Lincoln Town Car park lamp set
15. ?
16. Candle in the wind, 50's icon -- Marilyn Monroe -- Marilyn Monroe steering wheel cover
17. Hottest, driest, lowest -- desert -- brown canteen
18. Surfing USA -- swimming -- swim trunks medium
19. ?
20. ?
21. ?
22. Engineered by Eiffel -- monuments -- Statue of Liberty cell phone face plate
23. Helped steer lots of animals -- cowboy -- Extra-large black cowboy hat
24. Entry to the New World -- passport -- Honda Accord "Passport" key chain
25. ?
26. ?
27. ?
28. Lights up and oozes warm goo -- lava lamp -- 70's -- '70s show Mila Kunis photo
29. ?
30. ?
31. ?
32. Bobsleds, Big Thunder and Buzz Lightyear -- disney -- Disneyland vintage postcards
33. Sacramento -- river -- rafting -- Raft inflator and deflator
34. ?
35. What a doll -- barbie -- (BBQ) Barbie grill
36. Discoverer -- Columbus -- Nina (ship) -- Nina Ricci perfume
37. The Grateful Dead -- Jerry Garcia -- Ben & Jerry's t-shirt
38. Philly food -- cheese steak -- Garden Stake - mouse holding cheese
39. Roamed the prairie; also wings dipped in ranch -- buffalo -- bison -- Bison clip art
40. ?
41. Associated with the Graduated Federal income tax -- Woodrow Wilson -- first rose garden -- Valentine's roses
42. Kernels that stick in your teeth -- corn -- Corn flakes bowl & spoon
43. ?
44. Lee Majors -- bionic man -- Bionic Commando video game
45. ?
46. ?
47. ?
48. By a nose -- horse racing -- Racing saddle
49. Hunt the rabbit -- rabbit -- Rabbit & carrot salt & pepper shakers
50. ?
51. Elaine, George & Jerry -- Seinfeld -- Monks -- MEDIEVAL BROWN MONK COSTUME GOWN ADULT FRIAR TUCK L-XL
52. David Hasselhoff -- Night Rider -- Kit -- *LOOK* Kit Car bucket racing seats
53. ?
54. Spun Sugar -- cotton candy -- cotton gin -- Whitney -- USS Mt. Whitney LCC 20 8"x 12" Photo #0145
55. ?
56. ?
57. Big city keepers of order -- police -- Police car -- blue, with red & white trim
58. gum, baseball field -- bubble -- SMALL BUBBLE WRAP 3/16" BUBBLEWRAP 24 x 250' SHIPS NOW!
59. A movie, a Dakota city -- San Francisco - Franciscan Piggy Bank
60. ?
61. Rally towards four heads - they're better than one -- harley rally -- Harley Davidson tail light kit
62. ?
63. ?
64. Yellow feathers, orange feet -- big bird -- eagle -- EAGLE Aspen Direct TV satel
65. Not always the pits -- cherry pit -- Jewelry Box (CHERRY wood)