When speaking Swedish*, I remember the difference between he (han) and she (hon) using the following concise, snappy 'rule':
"Han sounds like Hans and Hans is a man, whereas hon is almost honey, which is what some people would call a woman."
Of course, by the time I've remembered that rule, the people I'm talking to have drunk so much stinging-nettle schnapps to relieve the boredom of waiting for me to say my piece that they're all comatose in their seats.
* That sounds like a) I can actually speak Swedish properly and b) I speak Swedish regularly.
The truth of the matter is that I can barely string a sentence together and almost never have to. And, even when I do, nobody has the faintest idea what I've said because I've mispronounced all the words.