I would second that a trusted VPN is a far better choice for this purpose.
You can get a rating of VPNs that don't sell you out here:
http://torrentfreak.com/which-vpn-services-take-your-anonymity-seriously-2014-edition-140315/
TOR is meant for browsing anonymously, but as they say during the download of
the browser bundle - bad habits will breach that anonymity. Logging into your
google/facebook/shopping over TOR is dangerous because:
1) Evil TOR Exit nodes that can SSL strip and read try and steal your credit
card.
2) Provides a clear link to you specifically even though they might not know
precisely which location you are coming from. Useful to keep tracking your
unique metadata/analytics.
3) Credit Card providers will often flag purchases during the verification
process if using TOR, since they check your IP during checkout.
There used to be a considerably large database tracking rouge exit nodes,
this site shows but a few:
http://torstatus.blutmagie.de/index.php?SR=FBadExit&SO=Desc
Further thoughts on using TOR properly:
http://lifehacker.com/how-can-i-stay-anonymous-with-tor-1498876762
