I'd like to know whether I should buy a curling wand or straighteners - forgive my ignorance! Growing out a bob, straight hair, been styling with my very old hot brush but think a new appliance is needed. I don't want ringlets or curls, just to give a wave and a bit of movement. Have watched youTube videos and see straighteners can be used for this, in a spiral motion. Is this better/easier than a curling wand? Thanks!