Which is the best way to strengthen your grip?

I've got a weak grip especially on my right hand and it makes it difficult to undo things like bottles etc.



I've tried various grip strengtheners but I haven't found any of them to be that effective, or perhaps I just haven't used them for long enough.



Does anyone have any tips?

via Smart Health Shop Forum http://feedproxy.google.com/~r/SmartHealthShopForum/~3/U9ns7AUvnX4/8881-best-way-strengthen-your-grip.html