Resident Icelander checking in.
I’ve got food in the fridge, gas in my car and access to enough booze to get me through the holidays 
But frankly, Iceland is not bankrupt. The major banks folded and have been nationalized. The government therefore had to take on loans from amongst other the IMF, to cover the outstanding accounts in the banks that folded. This is still in process and will be for quite awhile. This also means higher taxes on pretty much everything and cuts in government spending to be able to pay back those loans.
Due to this happening, the Icelandic Krona has sunk like a mobster with concrete shoes, making all imports quite the bit more expensive. Also, the national bank has set the interest rate at 18% (as opposed to the 0,25% at the Fed) to try to pull foreign currency back to Iceland.
Also, the inflation is supposed to hit 20% this year.
This is ain’t fun for us normal people, but nobody is starving and most people still have a job. The main problems are as follows:
[ul]
[li]Unemployment is on the rise and is expected to reach 9% come next year (from below 1% a year ago)[/li][li]Most of those who still have a job have gotten their wages cut by at least 10%[/li][li]Imports are more expensive (and since most things are imported, do the math)[/li][li]People are buying less stuff (due to the reasons above)[/li][li]Mortgage payments are on the rise (since they are tied to inflation, most people are looking at a 25% increase this year)[/li][li]Many people took car and house loans in foreign currency, these loans have increased 60-80% (depending on currency)[/li][/ul]
But lets take you hypothetical Peanut Butter factory:
You’d probably want to get your payment in advance, in USD (if you’re in the States). That would be a problem, since foreign currency is in limited supply, but companies are allowed to buy as much as they need to pay for expired invoices. So you’d get your money, when the invoice expires. If you’re willing to take the risk of the company not going belly up before that happens.
Main lesson learned: Don’t let your banks owe more than ten times your GDP 
These are some of the main things that have happened. If you have any more questions (or want me to clarify what I’ve said, which I’m sure I need to do), shoot!