I thought about transfer more money to Bank B that is giving above 4% interest rate till the middle of April. Then, I found a deal "Buy tax software and get these software for FREE" deal at Best Buy. I bought 12 software including Tax Cut, send out rebate to all of these software, and planning to turn around and sell them at Amazon.

It turns out one software has an upgrade rebate and another one requires activation. So, I returned two software and got my money back.

So far,
Total spending $294.83
Rebate total $265
Out of pocket $29.83

I have nine software to sell, and they should average at least $10 each. So, I can expect $90 sales - $29.83 out of pocket. Final profit should be at least $60. That's 20% return for $300 investment. Not bad at all if it all goes well. We will see.....

Bank A
Previous balance $472.94
Software payment $294.83
New balance $178.11

Bank B $285.32

Total $463.43

Software rebate pending $265