My underarms are the easiest place on my body to shave, takes me probably about a minute each. And I do have a lot of hair there, just don't let it grow long and out of control, shave them probably twice a week, or whenever I feel I have to, such as if I'm wearing a top or dress where I know they are going to be visible, grab my razor, a few licks of it on each, dry (almost always dry shave, the hair comes off easier and don't have all that mess of wet hairs stuck in the razor and all that moisturizing goop, eew), done, ready to go. My mom's always like, "I don't know how you can shave dry like that, makes me itch just watching you", hey, going to get itchy shaving no matter how its done, I think less so dry because not applying any irritating chemicals to the skin. Took forever shaving in the shower when I used to and I'd still miss a lot of hair on my body and have to go back over it. I have a really deep crevice in my armpits too, but I'm able to work with it, just have to move into it at different angles.