i have been brewing a little over a year now and probably brewed a couple dozen or so batches by now. my ritual is to use hot soapy water to clean the bottles out, rinse them so no soap remains, and set them in the dishwasher.
turn the DW to rinse cycle and click the heat drying cycle on (if equipped, which obviously mine is) and let it go. i use no detergent, just hot water to sanitize. i then either leave them in there (i hand wash our dishes) or set them in a case and cover with saran wrap until need them to bottle with.
works for me. maybe a bit anal, but i don't want to chance losing a good batch because i took a shortcut that didn't work out. YMMV