Save the citrus peel from whatever you ate that day (an orange, lemon, lime...what have you).
Dampen the thing to be cleaned then sprinkle baking soda around the sink, stove top or counter or what have you (but not if it's stainless or copper...funny things happen to those!).
Let it sit for a while then use the outside (the oily part) of the citrus peel like a scrubby.
The soda makes my sink shiny and the peel makes it smell good.
If I don't have soda, salt or borax works fine.