keyword research software that’s easy to use

Are you looking for easy keyword research software?  I know that when I’m testing out new keyword research tools, ease of use is important to me.  Sure, I like keyword research tools that are powerful and can do a lot for me, but at the end of the day I need something that doesn’t require a PhD to operate.  Think of it this way – even if you manage to figure it out, how in the heck are you ever going to explain it to anybody who works for you if it’s really complicated.  That’s why I like using a variety of free and cheap tools rather than the big complicated ones.