Etching liquid Question

[StealthCaliber]

Whats a good or the best etch juice now a days ? I had a bottle of radioshack pcb etch that worked pretty good and I was going to put some on an A2 overnight but A it's 8 years old an B it ate through the bottle out there and there's none left .. need to find something on jAmazon and have it prime shipped.

 

[G-Rob-D]

Salt water and a 9v battery

 

[Murman]

 

[zombieassassin]

9v battery
Some alligator clips
Wire
Salt water
Q-tips
And a YouTube video
Easy as pie