These kitchen brushes have seen better days, and have been replaced.  Their new counterparts have slightly different properties from these, so these have remained in service.  The bottle brush has to go, though, because it made a rusty scratch on something I was cleaning. These nylon crocheted scrubbies,  the left one old, and the right, red one new, last for a long time, and are truly versatile.  This crocheted dishcloth adds a bright spot, and will probably last about a year, as worked into my kitchen wash routine.

Maintenance is required  by way of replacement of these common kitchen tools.