I should take this out again ... and take more notes.good overview. simple and clear definitions.Criteria for picking funds -- not just or necessarily recent performance. - be rated 4 or 5 star by Morningstar.- have performed at least as well as their benchmark over the past 1,3,5 years.- have an annual expense ratio of 1.5 percent or lower.IRA contribution limit applies to all your IRA accounts (including ROTHS) -- not each individual account if you have several. If you discover you've overcontributed for the year, you won't be penalized if you withdraw the excess before you file your tax return. ROTH IRA -- no tax break when you put the money in, but no taxes paid when you take it out (under the rules, generally a 5 year holding rule) and you don't pay tax on the earnings. You are not required to start taking it out at age 70.5. There are limits on what you can contribute, and you can't contribute to a ROTH at all if you have a high income. You can withdraw from your ROTH at any age -- just watch the 5 year rule.Online retirement calculators. Monte Carlo analysis -- estimate the likelihood the calculated result will come true. www.flexibleretirementplanner.com. Distinguishes between taxable and tax-deferred retirement assets, and tax-free assets such as ROTHs. Compare the result with a non-Monte Carlo result for a reality check.