what's the best way to store russet potatoes?

[chowmama]

7. Dark cool place away from onions will delay sprouting, but not prevent it.

In the fridge, they tend to turn a little sweet over time - not super sweet like yams, but just a titch. Depending on how you use them and how fussy you are, you may not even notice (assuming enough butter, salt and savory herbs/spices). Personally, I'd be fine eating them like that.

They don't can well except as soup, where it's not only not a problem when they disintegrate, it's actually ideal. (For canning whole or chunks, use reds or golds.) I have several jars of potato leek soup in the pantry, and they'll be good for a year, assuming they last that long.

They freeze well as mashed, but you need to put enough butter in them to keep them from getting grainy.

If they sprout, try planting them in the spring.