Hope I'm not too late to chime in.
You can get delivery of some foods from Amazon (quality and prices vary, understand that). One good company is Bob's Red Mill
. They sell a lot of grains and many of them are either free shipping or you can get them as subscribe & save which means free shipping + a discount for signing up for continuing buys (which you can put off). We eat the quinoa, bulgur and flaxseed from them.