Letters.

This document is a collection of letters from readers of Kiplinger Personal Finance magazine. The letters cover a range of topics including cashing in savings bonds, tax rates in retirement, credit card fees, and strategies for index investors. The readers provide their own experiences and perspectives on these topics, offering insights and raising questions. The document also includes an update on new requirements for European travel. Overall, the letters provide a diverse range of viewpoints and experiences related to personal finance. [Extracted from the article]