This entry is applicable only for readers in the United States. For my international readers, feel free to continue, but I'm afraid this will likely not be applicable to your personal finance situation.
Many sections of the Internal Revenue Code - whether it be personal exemptions, other deductions, or retirement plan limits - are generally indexed to some type of inflationary index each year. This generally results in an increase of applicable amount from year-to-year.
Whether it be in an IRA, 401(k) or other workplace plan, if you are currently maximizing your retirement contributions, then you will not be happy with this news: the 2010 contribution limits are going to remain unchanged in 2010. This means that you will be limited to the following contributions next year:
IRA - Roth or Traditional $5,000
401(k) $16,500
403(b) $16,500
457(b) $16,000
In addition, if you are over age 50, the additional 'catch-up' contribution limits will also remain unchanged:
IRA - Roth or Traditional $1,000
401(k) $5,500
403(b) $5,500
457(b) $5,500
If you were planning on increasing your 2010 contributions but are unable to do so, I would suggest putting the additional funds in the appropriate savings or investment vehicle so that you can still retain the savings benefit - albeit without the tax-free growth of earnings.