Dishwasher wouldn't clean

Once upon a kitchen dreary.
Washing dishes made me weary.
All the dishes would not clean.
Gunk clogged up my filter screen.
The lower spray arm stuck and rattled.
With flying muck my dishes battled.
The muck had won and I had lost.
The repairman said it would really cost.
And so I did a google search.
Partselect got me out of a lurch.
Correct parts were easy to choose
and service so quick I couldn't lose.
I took off the old parts and tightened the new
No tools were needed my fingers flew.
And now my dishes come out clean
I feel competent and frugal, you know what I mean?