How to shrink clothes. PURPOSELY.? i got this sweater, but i wanna shrink it. close to down...

i got this sweater, but i wanna shrink it. close to down two sizes. its a large. but i want it a small. its brand new. ive only worn it once, i never wash it. its made of 100% cotton.
i also wanna shrink my jeans. they're my favorite pair, but i havent be able/wanting to wear them. i want them to fit better and a bit tighter. its 100% cotton too. well yea its jeans. so how do i wash/dry the sweater & jeans surrounded by the washing tool and dryer (machine) to get these to shrink a bit?
Washing whites -- Is it well-mannered to use...
Answers:    wipe up on hot then dry on large! that'll do the trick!
How do you resembling Tobi steamer iron?
Wash them in soapy hot dampen and rinse twice then put them contained by the dryer on hot heat. This will definately shrink them. I did it accidently and it really shrunk the jeans and sweater.