Forgettable encounter areas Edit
Fishing/Surfing in the Towns/Cities.
South and North of Cycling Road.
Lapras in Silph Co.
Fossil in Cinnabar Island Lab; debatable as to whether it's a different area than Cinnabar Island proper.
East of Saffron City, requires Cut.
Eevee or Celadon Game Corner rewards.
Grass Patch below Pallet Town.
General Tips Edit
Make sure to visit the route to the west of Viridian City early on, when you revisit it, the Pokemon will not be as useful.
Always carry something to cure the poison status, if possible.
Remember, when in doubt, there are glitches everywhere, and your objective is, in the end, likely to have fun. It's very possible for you to use the Mew glitch, or Missingno glitch and still have it fall into classic Nuzlocke rules.