Never know if you should be spelling those pesky little words like practice, advice etc with a ‘c’ or an ‘s’?

As with a lot of things, it depends on the context, that is to say whether you’re using a noun or a verb.

My Dad explained it this way to me once and I never forgot it: You advise some advice, and you practise some practice. As long as you remember to say it practIZE, and spell it practISE, you’ll be laughing.

Easy! Bear in mind, though, that this holds true for British English, not so much so for the other strains of English. Sorry!