Avoid having too many accounts and paying out too many fees, choose a single brokerage firm with low - costs (andrewstotz.com)
Commissions are very reasonable at $ 4.99 per trade, and investors have access to stocks, options, futures and forex all in a single brokerage account. (charlessizemore.com)
While we're a little hesitant to crown a single brokerage as the best brokerage for TFSAs, there are some interesting points made by the posts in the thread. (sparxtrading.com)