Do I need to keep actual proofs for all my tax deductions claimed?

Last year I did earn some profits trading in options. It was a very small amount so do I need to disclose that in my tax returns?

I keep hearing about long Condors. What are these and how can I actually apply these condors in my options trading strategy?

How do I go about keeping my tracing universe of stocks very small?

As a trader, do I need to really worry about my trading costs?

Since I have soft copies of my returns, do I still need to keep hard copies of returns?

My broker has assured me that any open positions he will close. Do I still need to worry about closing all my open intraday positions?

I keep hearing about value investing all the time on the market channels. Is value investing actually a strategy and does it work?

What are the mistakes that I need to avoid once I have committed my funds and actually made an investing?

What is it that I need to keep in mind about my tax investment declarations?

What is the dollar swap auction and what does it actually do for the economy?