Convenience...

Whenever I 'go' to 'WC',

considering what I 'need';

if washing, or for to 'pee',

door ajar - yes indeed!

Fitted Heated 'Towel-Rail',

does it's task,  and is warm,

certainly efficient, no fail,

cosy indeed, just a charm!

It saves on cost, as it goes,

professional-fit = expensive;

price? Well, no one knows!

prospect leaves all pensive!

She who didn't fit the 'Kit'

fails to close and to save;

bothers me, a fair old bit,

cost of being her Knave?

Shall inform my dear wife 

close door and save strife!

(Thanks Rosemary x)