I have three bidets in my flat. This one
. Replace the regular seat w/ it, attach to the water line, plug it in, and squirt away. Not too expensive if you already have the electrical outlet.
It has changed my life, mostly for the better.
But nowadays i can't holiday in any country that doesn't have some type of sphincter washer. In SE Asia and the ME you can often find a bum gun
(a hose & spray nozzle) that works pretty well... provided you have decent aim. If you want a bidet-like experience on the cheap do what the Thais do.