A method of making a line-up of flexible containers for one or more fluent products, the method comprising: first, forming a first disposable self-supporting flexible container having a first structural support frame with a first predetermined volume of a first expansion material sealed inside the first structural support frame of the first container and the first container having a first product space (2050-a) with a first predetermined total capacity; wherein the first structural support frame is formed of one or more structural support members, which include one or more structural support volumes expanded by the first expansion material; wherein the first forming includes: folding one or more first flexible materials to make a first particular folded configuration, and using the first particular folded configuration in the forming of the first container; the method being characterized by second, forming a second disposable self-supporting flexible container having a second structural support frame (2040-c) with a second predetermined volume of a second expansion material sealed inside the second structural support frame of the second container, wherein the second predetermined volume is greater than the first predetermined volume, and the second container having a second product space (2050-c) with a second predetermined total capacity, which is less than the first predetermined total capacity; wherein the second structural support frame is formed of one or more structural support members, which include one or more structural support volumes expanded by the second expansion material; wherein the second forming includes: folding one or more second flexible materials to make a second particular folded configuration, which is substantially the same as the first particular folded configuration; and using the second particular folded configuration in the forming of the second container. folding one or more first flexible materials to make a first particular folded configuration, and using the first particular folded configuration in the forming of the first container; the method being characterized by second, forming a second disposable self-supporting flexible container having a second structural support frame (2040-c) with a second predetermined volume of a second expansion material sealed inside the second structural support frame of the second container, wherein the second predetermined volume is greater than the first predetermined volume, and the second container having a second product space (2050-c) with a second predetermined total capacity, which is less than the first predetermined total capacity; wherein the second structural support frame is formed of one or more structural support members, which include one or more structural support volumes expanded by the second expansion material; wherein the second forming includes: folding one or more second flexible materials to make a second particular folded configuration, which is substantially the same as the first particular folded configuration; and using the second particular folded configuration in the forming of the second container. folding one or more second flexible materials to make a second particular folded configuration, which is substantially the same as the first particular folded configuration; and using the second particular folded configuration in the forming of the second container.