I have been looking at my purchases of software utilities and tools I've made over the past couple of years, and I realize that they can definitelly add up!
For example, a screen capture utility like 
SnagIt will set you back $49 dollars!  and then you have to update every couple of years...    Multiplicity Pro ($50.00) to use one keyboard /mouse to control mutliple computers . NeoPro ($50.00)for mail management.  
Trillian ($25) the multi-IM client. Why did I need to purchase again 
WinZip ($30)- when it is now recognized by the OS?
Now do not get me wrong,  I love these tools and without them, frankly,  I would go nuts (or maybe bananas!)
Over the next few weeks, I will try to get all of the same functionality with freeware and/or open source software   --  I will let you know how I do...