If you're a Canadian that travels to the US for work or fun then you should know about Roam Mobility. These guys can usually save you 40-75% on US phone and data charges (compared to Rogers, Bell, Telus, Fido).
If honor of US Black Friday, they are discounting their service fees by another 50%.
The only deal condition is :
" is schedule your plan to start between November 28th and December 2nd. The discount will automatically be applied to your shopping cart and you're good to go. Limit one per customer."
Plans include unlimited nationwide talk, unlimited global text, free long-distance calls to Canada, unthrottled high-speed data (where applicable), plus free voicemail and caller ID.