Distinguish between acquiring a card and doing the minimum spend to get a mega bonus, and actually using the card for everyday spending. The initial bonuses are huge, and the minimum spends to get them are easy - just buy coins from the U.S. Mint. But for actual everyday spending, the cash back cards are usually better.

• Find the mega bonus offers in the Credit Card section of my website below.
• Read the Value of Miles section of that website to compare using a miles card for everyday purchases vs. using a cash back card for these.