Are you on here just so other women can say "Ahhhhhhh. . .you’re so sweet!" Pretty cheap buddy.
References :

If she is starting to get depressed or thinks that you don’t care about her just tell her and save her anguish, but if she’s easy going you may be able to play it off until the time comes. Good idea and good luck!
References :

I know! Tell her to buy a suitcase……….and that’s it! That way, she’ll know you care, and have something planned, so that she won’t plan anything herself.

Plus, she’ll have two whole months to dream about where you’re going!
References :

I’d keep up the facade. However, make sure she doesn’t plan something that could interrupt your reservations.
References :

better tell her soon!
Women like to plan and shop for trips like this!
Also, I hope you are sure that she wants to go to Mexico – or you might get a different reaction from what you hoped for!
I personally would not like a surprise like this – but rather plan trip and destination together as a couple!
References :

Awww…you are an awesome husband!! She will love it! Play it out a little longer if you don’t think she will be upset for being decieved and if you don’t think she will plan something big as well!
References :

Never play the don’t care character – that is mean and mean.

But don’t tell her either – control yourself LOL – tell her that you will do something special like dinner etc. And surprise her.
References :

you just tell her..
References :

Very nice! but yes tell her so she can get excited about it and get ready it would sure change her out look and attitude toward you until then …. very exciting… Good for you!!!
References :

Maybe you don’t give her all the details, but you have to let her know you are in control of the situation. Tell her that you have thought of something very special and that it’s going to take some planning. You might make a game out of it by dropping little hints here and there that lead her up to the trip you have planned. While she will be very happy with the trip, if you play off like you don’t care, it will hurt her feelings, and that isn’t what you want to do.

She is going to need at least a month with full knowlege, because you know she is going to want to buy some new clothes for the trip.
References :

There are two schools of thought but I would go with telling her. That way you have the fun of her out shopping for new sexy clothes as well as he "telling her friends" what you are doing for her. Lot’s of mileage there! Enjoy!
References :

I would hold off as long as you can. If she starts getting upset that you are not caring and causing problems then tell her something just not everything. Tell her yes you care you have something planned but wont tell her. This way she knows you care and is super excited about what it could be. She will be telling everyone how her wonderfull husband loves her and has a mega surprise for her. She will be the envy of all her friends.
References :

Lame. You should cheat on her.
References :