Transaction Costs in Trading

Active trading involves huge transaction costs. In my experience as an intraday trader and running a trading office predominantly consisting of short term traders

1. Huge amount of energy is expended in the form of Transaction Costs, Taxes
2. Some of the items in the Broker's charges that need clarity is the Stamp Duty in case of Brokers having regd office at Hyderabad.
3. Turnover Charges being charged in excess of NSE Charges from clients ?
4. Victor on the effect of VIG