i would suggest an inexpensive salad spinner. that is the best way. i spin and then put in baggie with paper towels to soak up any left over water. course if i buy the more expensive live lettuce. it is not a problem, i just brush leaves off with a slightly damp paper towel. only the ones for one meal.
i had a friend that used spinner then put in fridg. still in the spinner, her thinking was any water would drain off . however she stored in spinner and i did not want to do that. took way to much space in fridg.
"life isn't about how to survive the storm but how to dance in the rain"