You don't take your phone with you when you go out to buy the surprise gift, or you turn off location services. The shared bank account is harder, I set aside

You don't take your phone with you when you go out to buy the surprise gift, or you turn off location services. The shared bank account is harder, I set aside a little bit of money into an account only I can see each payday, so that I can buy things without the surprise being ruined.