Private online shopping

Have you seen that advert for the bloke that is doing some online browsing and hides his computer from his wife? He's meant to be shopping but it always made me think of all those blokes I know who have been caught viewing porn online.
However, now it's Christmas shopping time, and you have to hide what you may/may not be buying for the other half. A few ways to do this:

1. Don't let him/her use your computer (keep their sticky fingers off your keys on pain of death)
2. Always sign in / out of your accounts of the various sites. The good ones will then hide what you are viewing in the privacy of your sign on name. Quel pain....I just google gifts and cannot be bothered with this one.
3. Set your browser to clear your history when you shut down. Not bad as long as you remember to shut down.
4. Use the browser on your phone.
5. Employ the Private Browsing mode in FireFox (Ctrl+Shift+P). This mode had me in caters to the porn scenario so well. However, for Xmas shopping, I hope it works. I've just started using it and hope it will keep a few of the gifts I get as surprises.

Finally, did you all go mad on Black Friday and place tonnes of online orders. Apparently it's that day in the year when most orders are placed. Personally, I could not be bothered with the masses of "DEALS DEALS DEALS" and will probably pay more for some goods, though I suspect in this recessions more deals will appear in the days up to Christmas.