R.J.
Okay... I'm wrapped in blankets, in long underwear, and wishing for a fireplace...
But in deserts, jungles, and doing hard work:
Mitchum Unscented Gel.
Armpits, groin/bikini line, and cleavage. A lot of people forget those areas when you're not used to 100+ degree weather. It's the 'hail Mary' . Same places you wash if in a huge rush. HIGHLY scented areas. The 'smell' often isn't pits, but elsewhere. :/