Στο νεσεσέρ μου βάζω πάντα αφρόλουτρο και αποσμητικό όταν ταξιδεύω.

Στο is the contracted form of σε + το.

• σε = in, at, to, into
• το = the for a neuter singular noun

So στο νεσεσέρ means in the toiletry bag or into the toiletry bag, depending on context. With βάζω meaning put, English often prefers into, but Greek simply uses σε for this idea.

Νεσεσέρ is a borrowed word, and in Modern Greek it is usually treated as a neuter noun. It is also commonly indeclinable, which means the noun itself does not change form much, and the article does most of the grammatical work.

So you get:

• το νεσεσέρ
• στο νεσεσέρ
• του νεσεσέρ

The article shows the gender, number, and case more clearly than the noun ending does.

In Greek, short possessive forms like μου, σου, του, της usually come after the noun.

So:

• το νεσεσέρ μου = my toiletry bag
• literally, something like the toiletry bag of mine

This is the normal Greek pattern. If you want stronger emphasis, Greek often uses δικός:

• το δικό μου νεσεσέρ = my own toiletry bag

Greek often leaves out subject pronouns because the verb ending already tells you who the subject is.

Here, βάζω means I put, so εγώ is not necessary.

• βάζω = I put
• βάζεις = you put
• βάζει = he/she/it puts

You would add εγώ only for emphasis or contrast:

• Εγώ βάζω πάντα... = I always put..., maybe contrasting with someone else

The Greek present tense is often used for habitual actions, not just actions happening right now.

Because the sentence contains:

• πάντα = always
• όταν ταξιδεύω = when/whenever I travel

the meaning is clearly habitual: this is something the speaker does regularly.

So βάζω here means something like:

• I always put
• I always pack
• I make sure to put

Πάντα means always.

It modifies the whole action: the speaker always puts these items in the toiletry bag when traveling.

Its position is flexible, but the placement here is very natural:

• βάζω πάντα αφρόλουτρο και αποσμητικό

You could also hear:

• Πάντα βάζω αφρόλουτρο και αποσμητικό...

The meaning stays almost the same, but the emphasis shifts slightly.

Greek often leaves out the article when talking about non-specific items, especially in lists of things someone packs, buys, eats, or uses.

So:

• βάζω αφρόλουτρο και αποσμητικό = I put shower gel and deodorant

This sounds like a general packing habit, not a reference to two specific already-identified objects.

If you said:

• βάζω το αφρόλουτρο και το αποσμητικό

that would sound more like:

• I put the shower gel and the deodorant
• meaning specific items already known in the conversation

They are in the accusative case because they are the direct objects of βάζω.

The speaker is putting what?

• αφρόλουτρο
• αποσμητικό

Both are neuter singular nouns, and for many neuter nouns in Greek, the nominative and accusative look the same.

So:

• το αφρόλουτρο can be nominative or accusative
• το αποσμητικό can be nominative or accusative

Yes, in this sentence αποσμητικό is being used as a noun, and that is very common in Greek.

Originally, it is the neuter form of an adjective meaning deodorizing, but Greek often uses neuter adjectives as nouns for objects or products.

So:

• αποσμητικό = deodorant

This happens a lot in Greek. A word may be adjective in form but function as a noun in everyday speech.

Here όταν ταξιδεύω means when/whenever I travel, referring to a repeated situation.

The present tense after όταν is very natural for habits and repeated events:

• Όταν ταξιδεύω, παίρνω πάντα...
• When I travel / Whenever I travel, I always take...

If you were talking about a single future trip, Greek would often use a different form, such as:

• όταν ταξιδέψω = when I travel on a future occasion / when I go on my trip

So the present ταξιδεύω here helps show that this is a general habit, not one specific future event.

Greek word order is more flexible than English word order. Putting Στο νεσεσέρ μου first gives that part of the sentence extra prominence.

It sets the scene first:

• As for my toiletry bag...
• In my toiletry bag...

A more neutral order would also be possible, for example:

• Βάζω πάντα αφρόλουτρο και αποσμητικό στο νεσεσέρ μου όταν ταξιδεύω.
• Όταν ταξιδεύω, βάζω πάντα αφρόλουτρο και αποσμητικό στο νεσεσέρ μου.

These versions mean essentially the same thing, but the original puts a bit more focus on what goes in the toiletry bag.

Yes. Greek often uses βάζω in a very broad everyday way, and in travel or packing contexts it can sound like put in, pack, or include.

So although the basic meaning is put, the natural English sense in context may be:

• I always pack shower gel and deodorant in my toiletry bag when I travel

That is a normal and idiomatic way to understand the sentence.