What's your all time favorite sandwich to make at home?

Mine is this vegetarian foccacia filled with yummy marinated bits and pieces:

http://notecook.com/appetizers/sandwi...

How about you?

I love couscous because it's such a versatile grain. The possibilities are endless! What are your favourite ways to use couscous in a unique manner?

Here's mine:

http://gomestic.com/cooking/five-yumm...