Very useful and free progs!

Keepass password safe
http://keepass.info/

If your like me, you have a lot of user name and password combos to
remember. Some sites that I use I don't log into a whole lot, and I forget which
user name and password I used. Keepass will store all your
user names and passwords in a secure database on your
hard drive. It's a must have for any daily web user.

Jpeg lossless rotator
http://www.annystudio.com/software/jpeglosslessrotator/

I have hundreds of pictures, and when I go to organize them, it
drives me crazy when the image is rotated. With Jpeg lossless rotator,
all you have to do is right click the image, click rotate and it's done. There is no need for moving the images into an image editor to rotate them anymore.

MozBackup
http://mozbackup.jasnapaka.com/

This little program will backup your Firefox bookmarks, settings, history, etc.

Foobar
http://www.foobar2000.org/download.html

I've been a loyal user of Winamp for many years now, but in the past
few months have noticed how memory intensive the bloated
program has become. Foobar has a simple stripped down interface
and a small memory footprint. You can also download a last.fm
plugin, if your a last.fm user.

Format Factory
http://www.formatoz.com/

If you have a need to convert pretty much any file type (mp3, jpg, avi, etc) to another, this program is the easiest all in one program to do it with.