re: Girlfriend wants shared locations.

Terrible idea. Here is your out:

I don't want to do that, because I would never be able to surprise you with any gifts. I'm at the flower shop, you will know. I am getting you a gift card to earthsavers, you will know. I'm at the jewelry store picking out an engagement ring, you will know. I'm at your parents asking your Dad if I can propose, you will know. I don't want to share our locations and ruin all the romance.