sprouts!

mung beans are great. they are the easiest and yummiest things to sprout, and are crazy-cheap at about $3 per kilo in my local asian grocer. 

instead of forking out $2+ for a 250g packet of killjoy already-sprouted sprouts, you too can harness the awesome, inbuilt sproingy power of sprouts! 1kg of dry beans will make a gazillion days worth of sprouts. or at least 6 months' worth. that's at least $350 in my kitchen. of sprouts. yes indeedy.

so: all you need is the dry beans, some water, a windowsill (not direct sun), and a jar. you could drill holes into the lid of a jar:

or just cover the lid with a piece of cotton or other breathable fabric (even a square cut from an unused multipurpose cloth or paper towel) works - just secure it to the jar with a rubber band.

in your jar, soak about 2tbs of beans in a cup of water (preferably filtered) overnight, or for at least 6-10 hours (less hours in warm weather, more hours in cool weather). you should see the beans swell a little and break through their tidy green jackets by morning.

drain the soaking water, carefully so as not to tip your crunchies-in-waiting down the drain. rinse with a little water, drain, and set on the windowsill with your cover of choice closing the jar.

rinse once a day, twice if the weather is hot or humid. eat anytime from when they look like so:

after this point, keep any remainders in a sealed container in the fridge. you will quickly learn about your desire for sprouts, and thus how long you should wait until you start your next batch to ensure yourself a continuous supply.