I think the things we need, or where we need them, changes based on the status of the relationship. For example, having deodorant or hairspray in my purse is no longer a big deal to me, because I leave some at Trooper's house.
I think the point isn't that you might even need anything - as much as it is that knowing your favorite "things" are available just makes you feel better (read: less stressed, more confidant).
This post from How about we, 10 Things that should always be in your purse on a date, sums it up nicely. The things that make you feel confidant and pretty should be with you - at all times.
1 - Lipstick and/or chapstick
2 - Deordorant
4 - Tissues
5 - Pain meds (allergies are not an issue for me, but sore knees might be)
6 - Cash
7 - Phone (which includes a book app)
8 - Powder (I like to shine, but c'mon)
9 - Mints
10 - Safety pins/sewing kit
|Perfect - no water required.|
2 - Nail clipper and clear nail polish - for manicure emergencies
3 - Phone charger
4 - Umbrella (make it a purse-size, just in case)
5 - Mini-toothbrush