Recently i started doing some trades in dollar values instead of number of shares.
7/28 Bought $100 worth of MMM share @155.69(.642 shares)
7/31 Bought $100 worth of MMM share@149.28(.669 Shares)
7/31 Bought 1 share of MMM @150.28.
8/13 Bought 5 shares of MO@ 42.75
I also added some speculative plays like RIOT,ASPS this month.