I often tell new customers, "I like to think I'm smarter than everyone else, but my wife and kids will tell you otherwise. It's not that I'm smarter, it's that I work with this stuff every day, while you are dealing with it for the first time". One huge advantage I have right now is that I have been working with another agent for several years who is in his 80's. Supposedly I'll take over his customers when/if he ever retires. He has customers he has worked with for 30+ years, so I often tap in to their 20/20 hindsight.
I don't want to make it a "Top Ten" type of list because sometimes on those the focus turns to whether #3 should really be # 5 instead of how to solve both #3 and #5, regardless of where they are in the hierarchy. However, there is a clear #1, so this post will focus on it, and it will be the theme I consistently refer back to when discussing the others. Speaking of the others, here are the main others, in no particular order. (I keep thinking of more, but I need to sleep some time.)
- All or almost all of savings tax-deferred
- Unrealistic picture of what will/won't happen when one spouse outlives the other
- Basing decisions on averages
- Lack of communication with children and others
- Lumping everything together instead of separating out "paychecks" and "playchecks"
- Basing decisions on how long they think they will live
- Basing decisions on how good or poor they think their health will be in retirement
- Spending too much or too little (much more common with people I see) early in retirement
- Doing the same thing that their friends, relatives and/or parents do or did, ignoring how those people's situations vary from their own
- Having only a saving plan, not a spending plan
- No plan for how to take Social Security and/or pension
- Having way too much or way too little insurance
- Focus on how much money they have (or don't have) rather than how much they can or can't spend after the bills are paid
- Worrying too much about how long they will live instead of how well they will live
Here are a couple of places to start. I don't agree with everything these guys say (could be a whole other series of blogs there), but they are fairly easy to read, and you can join groups to learn that way if you aren't a reader. The nice thing about them is that they've both sold enough books that you can find them at Goodwill for a buck or less.
http://www.daveramsey.com/home/
http://www.amazon.com/Ed-Slott/e/B001IGOQNC
http://www.amazon.com/Rich-Dad-Poor-Teach-Middle/dp/1612680011