Over the last few weeks we've covered a lot of things pertaining to taxes and tax preparation.

Tax software

that you can download is quickly becoming harder and harder to find. This week, Michael "Doctor File Finder" Callahan rounds out our tax prep coverage with a look at TaxAct!

Mac users are at something of a disadvantage as the wealth of free software available on the PC is unmatched. There are some

great free Mac applications

available though and Doc runs down his top five list of the must-haves.

There are some programs that you want to have start each time Windows starts. They may be utilities that you use all the time and you want to have them already loaded up and ready to go. At the same time, however, some programs will sneak their way into your Startup folder. These applications can rob you of precious memory and slow things down. These

startup managers

will help you to see what's running when Windows starts and let you take control back.

The most common and popular form of file compression is the

ZIP format

. You'll find ZIP files everywhere you go on the Internet. Today, Doc looks at four,

free programs for working with ZIP files

. They're all good, they'll all archive and unarchive ZIP files and, perhaps best of all, they're all

free software

.

February 14th is Valentine's Day and perhaps you'd like to celebrate a little bit. Surprise your sweetie with a

surreptitious screen saver install.

Today we're going to show you three

free screen savers

just for Valentine's. They run the gamut from garish to... well, slightly less garish.

Sure, you could drop several hundred bucks on Adobe's flagship, Photoshop. If your

photo editing

needs are a little lighter though, consider one of these

awesome free Windows image converters and editors

.

Convert an image from one format to another with free software

, add some photo effects and

crop and resize photos with free software

.

Doc takes a look at some

free PDF editors

and

free PDF printers

that are a viable

alternative to Adobe Acrobat Reader

. Everywhere you look you'll find PDF files and there's a good reason. PDF files are secure, they can span multiple platforms, and they maintain all original formatting. This week, we're going to look at some cool, free programs for working with PDF files.

The Android Market is loaded with cool applications. Many are free, and that includes games. The quality of the

free, Android games

is quite impressive so this week I'm going to look a five cool ones you can get for free.

Your BlackBerry is a powerful productivity tool. However, it's also a pretty sweet entertainment device. With these

four free streaming radio and music apps for BlackBerry

, you can listen to your favorite radio stations, bands and albums wherever you may roam.

Michael Callahan, AKA Doctor File Finder runs down his

top ten apps and services for 2010

. He's been doing this for a long time, having evaluated over a quarter of a million pieces of software! When Doctor File Finder picks his list of

best software of 2009

, it pays to listen up. The man knows of whence he speaks.