We make a point of keeping our pantry and kitchen well supplied but there are times when we have trouble sourcing some items. Cooking oil is a good example of something that everyone needs and yet we can't always get enough at a reasonable price.
We buy most of what we distribute either through the Food Bank or from restaurant suppliers or big box stores. We also have a network of generous donors and sponsors who hold food drives and collect donations for us.
Volunteers are another resource we need and we have a wonderful network of folks who spend from one to ten days per month helping us.