Wife going on a trip! Packing condoms!!

Wife is going on a trip next week. We both agreed that if she meets someone and the chemistry is right She can go through with it. She has been on several trips recently and loves flirting an meting guys but has bot gone the whole way.

I’m going to pack condoms in her suitcase without letting her know and I wanna leave a note.

I need suggestions what to say!! Any writers out there?