what are the best ways to store for later use ? My wife has a food saver that has not been used for some time. I have been thinking could I use that to remove the air from the plastic bag without setting off primers therefore protecting the primers for a longer period of time?

Just as long as they are dry and indoors there really is no special storage needed

Not a thing wrong with vacuum packing them. It might be a bit overboard, but that will eliminate any chance of a problem if you have a humidity change. Although Ted is right, I have vacuum packed primers before. It isn't a bad practice, imho...

What ever I have primers that are decades old nothing done to them except keep them dry.

I use them they go bang.

I guess if one wants to go to the extra trouble have at it.

Also keep them cool - don't let the heat get to them.

I store mine in Tupperware containers. Keeps things dry and it is easy to get some out. Like 7x64 said "keep them cool" Heat is not good.

I store my primers in a tupperware type bucket with a small cup of rice in it to keep them dry.
I have primers from the 1980's and never had any misfire.

i keep mine inside the house in a plactis bowl with a lid.

My primers and powder are kept in an old refrigerator. I you have the room they make good storage cabinets. Fireproof, heat insulated, sealed to the atmosphere, with a few bags of desiccant your stuff is well protected.
The one I have is a big old side by side. With a hasp, lock and a few chains it was once my "poor man's" gun safe.