Abstract: One example of a nestable-stackable wider-based disposable container is composed of a plastic-coated paper frustoconical tube having its wider end edge connected continuously to the mouth of a plastic bag whose capacity is larger than the tube size. For storage, let the wide end of one container to receive the narrow end of another container. The plastic bag of the former is forced to push up inwardly and to cleave tightly to the paper side wall, allowing the later to be compactly nested into the former. For usage, one stands a container on its non-tipping wider end, places items in via its upper narrower opening, discards it as a whole unit when done. Other examples are described and shown.

Abstract: One example of a nestable-stackable wider-based disposable container is composed of a plastic-coated paper frustoconical tube having its wider end edge connected continuously to the mouth of a plastic bag whose capacity is larger than the tube size. For storage, let the wide end of one container to receive the narrow end of another container. The plastic bag of the former is forced to push up inwardly and to cleave tightly to the paper side wall, allowing the later to be compactly nested into the former. For usage, one stands a container on its non-tipping wider end, places items in via its upper narrower opening, discards it as a whole unit when done. Other examples are described and shown.

Abstract: An example easy change mattress sheet attachment system includes a bed sheet having four sewn-on fabric casings in an arch shape and a cord inserted through the casings forming a set of accessible sections of drawstring at exposed between-casing cord regions at four corners, and a bottom mat having means for trapping drawstrings at four corners. After having installed the bottom mat under the mattress, one can install and remove the top sheet onto and from the mattress without having to lift up the mattress. To install the top sheet, first put the top sheet on the mattress, then execute drawstring-trapping maneuvers at four bed corners. To remove the top sheet, detach the engaged drawstrings at four bed corners.

Abstract: An example easy change mattress sheet attachment system includes a bed sheet having four sewn-on fabric casings in an arch shape and a cord inserted through the casings forming a set of accessible sections of drawstring at exposed between-casing cord regions at four corners, and a bottom mat having means for trapping drawstrings at four corners. After having installed the bottom mat under the mattress, one can install and remove the top sheet onto and from the mattress without having to lift up the mattress. To install the top sheet, first put the top sheet on the mattress, then execute drawstring-trapping maneuvers at four bed corners. To remove the top sheet, detach the engaged drawstrings at four bed corners.