Port ? - storage, foods to go with it?

[lizardbrains]

I did a search on here and found many ideas on the subejct of storing port after opening, but the topics were a bit old (from a few years ago), so I thought I'd just throw it out there again to see what advice you have for me.

If I open a bottle of port, I know I'm not going to be able to finish it in a week or so. I'll need to store it for a bit.

I assume I should use the nitrogen squirter thing? Private Preserve? I guess I gotta go find one.

And I gleaned that I should stick it in the fridge, too. Is that so?

Any other tips? Any idea how long I can make that baby last?

Also, while I'm at it, what foods go well with port? Since I'm going to want to consume this bottle (albeit slowly), I probably will want to pair it with some appropriate foods. Any suggestions?

Thanks!,
Elizabeth
P.S. I know you're going to ask me "vintage" or "tawny". I'm not sure what those mean (I'm a little rusty on my wine vocab). It doesn't have a vintage year on it. The bottle says it's made of 85% Zin, 10% Alicante Bouschet, and 5% Malbec. "This blend reflects opulent ripe berry fruit and nutty aromas, along with a warm silky finish; character that only these styles of wine possess."