The present invention is directed to a plunger, a plunger assembly, and a system for storing a substance or substances, preferably flowable substances, and a method of filling and sealing a substance in a storing system. In particular, the present invention provides for substantially air-free filling and storing of substances in a delivery system.

The system herein disclosed and claimed is a sponge-based cleaning device with self-contained detergent reservoir.

A paint applicator, kit and methodology for using the same is disclosed. For example, paint applicator that allows a user to load a desired amount of paint, such as a water based other low VOC paint, into the paint applicator and an advancement mechanism that dispenses paint at a rate controllable by the user is disclosed. The advancement mechanism can include system that translates a rotational force applied to an end cap of the applicator into a linear that advances a piston which in turn applies paint to an applicator portion. The paint may be reusable or may include a ratchet system that allows for only one time use. methodology and kit can incorporate a syringe for loading paint into the paint applicator, reducing the loss of paint through spilling.