I can buy flaxseeds in a number of health food stores and grocery stores
with a good bulk food section.
Look for a place with a good turnover. If the flaxseeds smell too much
like something from the paint shop (lineseed is actually flax seed oil)
they may have gone rancid. Try another store.
Store them in the fridge. Grind them in a coffee grinder.
Mix them with some soy milk and you have "instant porridge".