By The Kiplinger Washington Editors November 9, 2010 Best online savings account No monthly fees and a respectable rate. Earn 1.4% on a high-yield savings account with Sallie Mae Bank. Open an account -- there is no minimum-balance requirement and no monthly fee -- with as little as $1. You can transfer money electronically to a linked account, but you’re allowed only six withdrawals a month.Best credit cards if you... Want cash back on purchases American Express Blue Cash www.americanexpress.com Spend $6,500 with this no-fee card and you start getting 5% cash back on drugstore items, gas and groceries, and 1.25% back on the rest of your spending. Up to that threshold, you receive 1% back on basics, such as gas, groceries and drugstore purchases, and 0.5% on everything else. Like to travel PenFed Premium Travel Rewards American Express www.penfed.org You earn five points per dollar spent on airfare, three on dining and hotels, and one on everything else. Spend $650 in the first three months and receive 20,000 bonus points. You can fly cross-country for 25,900 points. The $50 annual fee is waived for the first year. Advertisement Need a low interest rate Zions Bank Low Rate Visa Platinum Card www.zionsbank.com This no-fee card has a 7% variable interest rate. Shop at participating merchants at www.zionscashrewards.com and receive up to 20% cash back on your purchases and 5% cash back when you book travel on the Web site. Want your college kid to have one Citi Forward Visa for College Students www.citibank.com Spend less than your credit limit and pay on time for three months and your rate (which starts at 13%) drops by 0.25 percentage point. You can do that eight times for a maximum cut of two percentage points. Earn bonus points for dollars spent and redeem them for cash, travel or merchandise. Best 529 savings plans Find one to suit your investing preference. Tax savings This is probably your state’s plan if it offers a tax break. Get the break no matter where you invest if you live in Arizona, Kansas, Maine, Missouri or Pennsylvania. Advertisement Low fees We recommend the Vanguard index-fund portfolios available in the direct-sold version of the Illinois Bright Start College Savings Program. Adviser plans The Virginia CollegeAmerica plan isn’t cheap, but your adviser can craft a top-notch portfolio from American Funds. Best accounts for kids Open a low-cost bank account or a Roth IRA. Young Americans Bank, in Denver, is the only kids-only bank in the U.S. It offers savings and checking accounts, credit cards, and loans. It takes just $10 to open a savings account (an adult must cosign) that earns 0.1%. An ATM card costs $5 annually, and you can make two free withdrawals a month. If your teen earns money from a part-time job, consider opening a custodial Roth IRA at Charles Schwab. The account offers a variety of mutual funds.