I usually buy 2,000 at a time and that will last me the season. I use two larger size freezer bags and put 1,000 spikes in cach bag. I get some fine pine shavings and change the bedding and pick out the dead spikes a couple times a week, time consuming but a must. You will want to keep them in the fridge and fairly cold around 34-36 deg F. Spikes are supposed to keep best in a sealed plastic bag because it limits the amount of air they get, thats what it said on the paper from Vados.
I would get ahold of a little fridge to keep the spikes in if the wife won't allow them in the main fridge. They don't hurt anything though.