unaired subplots from Star Trek Voyager

Unsure of if their letters will ever reach their intended destinations, crew reminisce about their friends and families. Tom writes a single letter addressed to everyone in his family besides his father. Neelix writes a letter introducing himself to “anyone who wants to read it.“ 

Seven writes to "any former borg whose whereabouts are known” after significant pressure from Janeway, who does not write a letter at all. B'Elanna sends an encrypted file with designs for possible Maquis defense modifications to Federation runabouts, inspired by the Delta Flyer. 

Harry, too overwhelmed to write, instead sends an audio file of his most recent clarinet performance for his mom, with the title “I’m still practicing.” Kes sends a series of thank-you notes to her favorite living Alpha Quadrant artists, authors, botanists, and musicians. 

Tuvok sends long, individual letters to each of his children, and a very short letter to his wife. When asked why, he says she “already knows anything he could tell her.” Chakotay writes to the Maquis about the importance of perspective and cooperating in the name of peace. 

For those wondering, the lizard’s name is “Two of Two.” Initially, Janeway worries that this indicates the presence of another lizard, but eventually it comes out that Seven named him that because they “are part of the same unimatrix in the Voyager collective" 

Neelix: so you have documentary evidence

Tom: No! This was a show! An entertainment!

Seven: Documentaries are a form of human entertainment

Tom: Not like that–

B'Elanna’s request is predicated on the idea that she’ll use the heelies to get from one engineering emergency to another more quickly in a tactical situation, but mostly she wears her standard-issue shoes and uses the heelies to make fun of Tom. 

Tuvok never asks for permission to add heelies to his uniform but Chakotay adds it to his personnel file anyways. Tuvok confronts him:

“Commander, I see that you have added an authorization form for “heelies” to my Starfleet personnel file. I have requested no such authorization. Why have you done this?”

“Well the crew has practically been breaking down my door with requests lately so I decided to add an authorization to everyone’s file. We can sort out which crew members should actually have them on a case-by-case basis as incidents crop up.”

“I see. I would like to request that my heelie authorization be revoked, as I do not wish to wear them.”

“Relax, Tuvok, it’s permission, not a requirement. You don’t have to wear them if you don’t want to. Unless you want this removed from your file for some other reason? Worried you’ll be embarrassed when we get back to the Alpha Quadrant and Vulcan High Command thinks you’ve learned how to have fun?”

Torres resists on the grounds that she's "just not comfortable letting everyone on the ship feel her senses" but eventually relents and lets Harry try it.

Though I think Tom would know he was color blind. In the US military, they test your vision intensively, and people who are color blind are not allowed to be pilots.

What if it was incorporated into the episode in order to make everything sillier?

Upon finding out, Harry asks Tom how Tom never knew he was colorblind. It turns out that Tom falsified his medical records in order to fast-track himself into Star Fleet's pilot program. He's Tom Paris, destined to be the best pilot in all of Star Fleet, dammit! Why would he spend time on medical tests when he could be spending time at a ship's console?

My slightly-less-fun explanation:

Accessibility has improved so much by the 24th Century that, although Starfleet knows Tom is colorblind, he was still allowed to become a pilot. After all, if he truly needed to see colors, he’d fail some flight test or similar. Nobody in Starfleet Medical ever told him because they assumed he knew.

When Tom was first tested for colorblindness as a child, his father didn’t tell him the result because he forgot didn’t want him to feel disadvantaged compared to the other children.