Don't they have a toothbrush

that can insert only the

brush part to the metal frame,

and lock-in,

 

so that people can possibly

buy a lifetime or a year's

worth of brushes in one go?

 

instead buying toothbrushes

frequently i mean.

 

Only the top portion need

be replaced after all.....

 

mechanical toothbrush does this

already i believe...

 

but what of manual ones. hmph...

 

kind of like buying a shaving knife

instead razor blades.

 

XD

 

bad idea? don't know.

 

ok i gotta get back to work.

 

but so many things i need to do

before.