Do you life activities include diagnosing bad capacitors on circuit boards? Take the time to build an in-circuit capacitor tester and stop needlessly replacing caps that are fine! It takes just seconds to go thru a board and identify all the bad caps!

http://ruemohr.org/~ircjunk/circuits/captester.jpg

@RueNahcMohr Yes, but I generally just look at them or feel their heads to see if they're domed.