Good stuff,
Yep, the ole 30 day rule. You have to keep your eyes open for all tricks, I guess.
For example; If you bought 1000 shares of SLI at $2, then the SP fell to .50, you decided to sell, it resulted in an incurred loss of $1500 or 75%. If you bought that same stock back BEFORE 30 days, you CANNOT claim that loss in a non registered account. So, you decide to wait for the 30 days and look at it then, BUT if the sp went to $2 within that 30 day period, guess what, you just lost again,and a lot more.
I believe this is how it works, if I am wrong, feel free anyone to correct or add.