#10 cans of powdered eggs, butter, margarine, shortening can feel daunting to open and consume when only one or two people are using them. #10 cans of dried celery and green peppers, usually used only 1-2 tablespoons at a time in recipes, can also feel overwhelming. Keep in mind that once opened, these foods will be good to use for a year, as long as they are kept away from moisture and light.
You can freeze half the contents of a can until you can use them. Or share the cost of a can among interested family or friends and divide the contents into ziplock bags for use over a period of a year. Bags should be stored in opaque containers to protect food from light. This allows you to rotate what you store.