Re-learning Old Lessons

I have 12 position in our two TFSA (Tax Free Savings accounts). All are Canadian dividend payers. Both accounts were spitting off dividends but neither had enough cash to buy a new meaningful position. Lightbulb moment I bought " a Canadian Select Dividend Index ETF" in both accounts as a place to put cash where they spit out a monthly dividend with no cost buys and sell and a reasonable MER.

I received an E-mail from Questrade (something new) with a whole lot of details on the ETF I bought including their top ten holdings. Turns out I already own 7 of the top ten! Good we at least agree I suppose? We have to keep the two accounts separate.