Heather's Guide to Writing Out Lists of Numbers

Welcome to Heather's Guide to Writing Out Lists of Numbers! First off, I would like to thank you for joining us, and reducing the stupidity in the world.  Secondly, this guide is not for the faint-hearted and is meant to be taken seriously. The guidelines outlined in this guide should be used at all times, regardless of the situation.
With that said, let's get started!

ALWAYS REMEMBER:
*Numbers should always be listed in ascending order.*

1. If you need to list multiple numbers, none of which are consecutive, it should be done as such:
          1, 4, 6, 8.
   A comma between each number is all that is necessary.
2. If you need to list consecutive numbers, time can be saved by doing it as such:
          1-5.
   A dash between two numbers indicates that each number in between those numbers is to be recognized.
3. If there are only two consecutive numbers, they should be listed without the dash, because there is nothing between the numbers:
           1, 2, 5.
4. If you need to list two sets of consecutive numbers, the two previous methods can be combined:
          1-4, 7-9.
   As you can see, we have two sets of consecutive numbers separated by a comma.
5. If you need to list consecutive numbers and individual numbers, it can be done as such:
          1-3, 5, 7, 9-11.
   A comma separates each entry, whether it be a individual number or a set of consecutive numbers.

All the previous examples can be applied to letters as well. For example, for a part of a question:
           1a-e, 2-5.
Note: There should be nothing between the number and the letter.

It's as simple as that! Thank you for reading Heather's Guide to Writing Out Lists of Numbers! To help you avoid making errors, we have provided some common mistakes so that you can be on the lookout for them.

Common Mistakes: DO NOT DO THESE!
1. When numbers are not separated:
          12345.
          1 2 3 4 5.
   This SHOULD be written as:
          1, 2, 3, 4, 5.
   But we know that we should never list multiple consecutive numbers like this. So it SHOULD be written like this:
          1-5.
2. When numbers are unnecessarily written out multiple times:
          1a, 1b, 1c, 1d.
   This SHOULD be written as:
           1a-d.
3. When a set of consecutive numbers is written out, then an individual number is written, but the individual number fits in with the consecutive numbers:
          1-3, 4.
   This SHOULD be written as:
          1-4.

Thanks again for reading Heather's Guide to Writing Out Lists of Numbers and reducing both redundancy and stupidity in the world!