Karen Nicole Johnson has produced a nice word document that list all software testing mnemonics. You will find in more than 10 pages useful software testing heuristics like SACKED SCOWS or SLIME. For every mnemonic, there is a link to the article or blog post that explains it.
You can find this valuable software testing resource on http://karennicolejohnson.com/2012/07/testing-mnemonics-as-a-card-deck/