That's great to have your collections at such high quality nickelsearcher. Most of my moderns have been from circulation, so some are in great condition, but some could use an upgrade.
Don't feel bad about collecting all over the map...You're not alone. I think I might have the bug too. I may very well be addicted

For date & mint my completed sets are:
- Dollar:
SBA, Eisenhower, Peace
- Half: Kennedy, Franklin
- Quarters: State, Washington
- Dimes: Roosevelt (1946-2008)
- Nickels: Jeffersons (1938-2008)
- Cents: Lincoln Memorial / Bicent (1959-2009), Flying Eagle (Still no 1856

Otherwise complete)
Sets I'm working on actively:
- Dansco 7070 (11 holes to fill)
- Dollar: Sacagawea (5 left to fill), Presidential (James Buchanen D left), Morgans (36 left

- Half: Walkers (5 left to fill), Barbers (26 left)
- Quarters: Standing Lib (11 left), Barbers (16 left)
- Dimes: Mercury (4 left to fill), Barbers (26 left), Capped Bust (5 left)
- Nickels: Buffalo (22 left), Liberty (4 left), Shield (8 left)
- Cents: Lincoln Wheat (16 left), Indian (14 left)
Other Unique Date/Mint Coins / Collections:
Paper:- Series $1 Silver Certificates (I have 1935 No Letter, A, Hawaii, B, C, D narrow, D wide, E, F, G no motto, G motto, H, 1957, 1957 A, B
- $1 Silver Cert Type Set (includes 1899, 1923, 1928, 1934, 1935, 1957)
- $1 1917 US Note
- $1 Federal Reserve Notes (1918 New York, 1963, A, B)
- $2 US Notes (1917, 1928 C, D, E, F, G, 1953, A, B, C, 1963)
- $2 1899 Silver Certificate
- $5 (Silver Certificates 1934, A, B, C, D)
- $5 (1902 National Currecy NYC, 1914 FRN, 1953 US Note)
- $10 (1902 National Currency Windham, 1914 FRN Red Seal, 1914 FRN Blue Seal)
- $50 (1934 FRN)
Coins:-
ASE: 10 Dates
- Half: 5 Seated Libs, 6 Capped Bust
- Quarter: 30 Seated Libs, 1 Capped Bust
- Dime: 36 Seated Libs, 1 Draped Bust
- 5cent: 22 Seated Lib
Half Dimes - 3cent: 2 nickel, 1 silver
- 2cent: 1 coin

- Cents: 8 Large Lib Cent, 1 Drapped Bust
- 1/2 Cent: 1 braided hair, 1 classic head
- 1 Roman Coin (180 A.D.)
- 2 Civil war copper tokens
I only keep one of everything, but

Like I said......Addicted.