guuuuuurl....
braidouts and/or twistouts. wash/condish/deep condish as usual, use shea butter or <insert your choice oils here>, braid your hair in maybe 6 plaits (you can either do it wet or damp) - let it dry naturally.
if you've got some straight ends from the relaxer that just won't curl, then take the very end of your braid (like the last 1/2 inch or so), add a little extra shea butter and bend it towards your face - secure with a small pony tail holder or small rubberband. when you're ready to wear your 'do, the ends will just curl in instead of stick straight down. also, it's better than wearing those hard little curlers on the ends of your braids while trying to sleep
now at the beginning of the transition i was doing flat-twists and loose twists but ran into a bit of a problem with detangling those suckas when it was wash time. Other than that, these are one of my fav styles!!! BIG bonus side is after you've worn those twists to death, you can unravel and sport a really really wavy twistout for days and days and days.
whether braid or twistouts, if the waves don't hold as long as you'd like, try using some LottaBody (or your fav) setting lotion while braiding.
can ya hear me say LIFESAVER and, it's also a beautiful style.