i just started putting some in..
use resident free shampoo for about a week before you start putting them in..
use climbers chalk, and backcomb the crap out of em. then roll them with climbers chalk often.
get small little rubber bands to "tie off" the ends, and continue to roll them.
after a week of that, you can then wash them, with any residue free shampoo. you just have to be gentle with them.
and make sure you DRY them COMPLETELY. use a blow dryer. they're like sponges and hold water alot. squeeze them out.
after you wash them, make sure you re-roll them with the chalk to get them tight and to lock up again.
and if any hair is sticking out of them or on the ends, take it and wrap it around the dread, then roll it again.
dreads are the most work for a hair due that you want to look like you dont care about your style.