yurbuds - headphones for women that won't fall out.
Even if you use almost all waterproof makeup this is your Insurance Plan that will keep your makeup total perfection through your sweaty workouts, dancing with your girls "all night" and on hot, humid days. FYI, it's been around for several years under the brand "Skindinavia" but available through Urban Decay as well.
This is what the Disney Princesses use to set their makeup after applying. Even if you sweat, hug, or rub, your makeup will stay in place and your face won't be shiny. You can't see or feel it either once it's dried, but this stuff is legit!
Couples' alarm clock - Put the ring on your finger and it vibrates to wake you and not your partner.
Flat extension cords (for under rugs).
Cupa - Rocks Whiskey Tumbler 2 Pack.