Learn Hardcore Norwegian: Jeg fikk et godt tilbud i butikken i dag.

Use fikk for a finished event in the past (including earlier today): a done-and-dusted fact.
Use har fått when the result is relevant now or you’re emphasizing the experience within “today.”

Both can occur with i dag:

Why is it et godt and not en god?

Because tilbud is a neuter noun. In Bokmål:

Indefinite article: masculine/feminine = en/ei, neuter = et.
Adjective agreement: neuter singular adds -t → godt. So: et godt tilbud (neuter), but en god idé (common gender).

How do I say “the good offer” in Norwegian?

Det gode tilbudet.

With a definite noun and an adjective, Norwegian uses “double determination”: a fronted article plus a suffix on the noun, and the adjective takes -e.
- det + gode + tilbud + et → det gode tilbudet.
Plural definite: de gode tilbudene.

Is Jeg fikk et bra tilbud acceptable? What’s the difference between god and bra?

Yes, it’s fine. Differences:

god/godt/gode inflects and can sound a bit more formal or “quality-oriented.”
bra is invariable (no endings) and is very common in everyday speech: et bra tilbud, det bra tilbudet, bra tilbud. Both are widely used here with little to no meaning difference.

What exactly does tilbud mean here? How about the phrase på tilbud?

tilbud = “offer/deal.” It can be a specific offer (a salesperson gives you a price) or a general bargain.
på tilbud = “on sale.”
- Specific discount you received: Jeg fikk et godt tilbud på sofaen.
- Store sale: Kaffen er på tilbud i dag.
- Finding a bargain (not necessarily negotiated): Jeg fant et godt tilbud.

Why i butikken and not på butikken (or vice versa)?

Both are common:

i butikken = literally “in the store” (inside).
på butikken = “at the store,” very common in everyday speech in many regions.
If you mean source (“from the store”), use fra butikken.
With company names or service providers, hos is natural: Jeg fikk et godt tilbud hos Elkjøp.

Why is it butikken (definite) and not butikk or en butikk?

i butikken = “in the store” (a specific, context-known store, e.g., your local one).
i en butikk = “in a store” (non-specific). Bare singular count nouns without an article (like “i butikk”) are normally not used in Bokmål.

Can I move i dag to the beginning? What happens to word order?

Yes. Norwegian main clauses follow the V2 rule (the finite verb is the second element):

Is the order i butikken i dag fixed, or can I say i dag i butikken?

Both are possible. In practice, many speakers put place before time at the end:

… i butikken i dag (very common)
… i dag i butikken (also acceptable; choose what flows best with what you want to emphasize)

How do I negate the sentence naturally?

Grammatically fine: Jeg fikk ikke et godt tilbud i butikken i dag.
More idiomatic with neuter under negation: Jeg fikk ikke noe godt tilbud i butikken i dag.
- For plurals: Jeg fikk ikke noen gode tilbud …

What are the key forms of the verb få?

How do adjectives agree with neuter, plural, and definite nouns?

Using god as the model:

Indefinite singular, common gender: en god butikk
Indefinite singular, neuter: et godt tilbud
Indefinite plural (all genders): gode tilbud/butikker
Definite singular/plural (with article): det gode tilbudet / de gode tilbudene

What’s the plural of tilbud?

Any spelling or capitalization gotchas?

How is the sentence pronounced (roughly)?

Approximate guide (East Norwegian tendencies):

Jeg ≈ “yai” ([jæi])
fikk = short i, long k ([fɪkː])
et often reduced ([e])
godt = short o, final -dt as [t] ([gɔtː])
tilbud = stress on first syllable, Norwegian front u ([ˈtɪlˌbʉːd])
butikken = stress on ti ([bʉˈtɪkːən])
i dag = [i dɑːg] Don’t worry about perfect IPA—focus on short vowels before double consonants (kk, tt) and clear stress.

Are there other natural ways to say “I got a good deal at the store today”?

Yes, depending on nuance: