Volume Boost for Acoustic/Electric Guitar?

Some acoustic guitars require a preamp.  There are many around.
 
Here is an LR Baggs example.  http://www.musiciansfriend.com/accessories/lr-baggs-para-acoustic-guitar-di-and-preamp
 
Just a regular preamp will work too.  A channel in a mixer, etc.

There are dozens of stomp boxes on the market that are used for this. I have been collecting these Mooer Pedals and they are built like tanks, Have solid feel and most are well under $100. This is the Mooer boost pedal
 
http://www.mooeraudio.com/en/ProductInfo.asp?id=44
 

 
You can also use a lot of overdrive pedals. My Mooer Green drive can be set up as a volume boost with just a hint of overdrive. You can also use some EQ pedals this way. I have an old MXR Pre amp pedal that I used occasionally for a boost of both electric and acoustic. 
 
I'm in the same boat playing in an acoustic duo. I tried a volume pedal and unless they have a second control for the lower volume limit, you find yourself turning down too far all the time. I also get unbalanced when standing on one :? (So don't drink and pedal)
The boosters are a good idea and I tried that but found it a little unnatural. It was too abrupt.
 
My best solution is  I use my saddle PU for rhythm level and then I have a small mike to one side for leads. It's great for when your doing runs and fills as I can really control my level accurately this way. We use only one monitor mix that clones the FOH so I hear what the audience hears. 
I have to turn aside just a little to play directly into the mike which is usually when I'm not singing anyway.  Also it  has improved my overall sound as nothing beats a mike on an acoustic box. I have a Taylor Mini GS. The PU system is better than average but I am really liking having the mike after all these years of avoiding them because I move around too much. This gives me the best of both. The mike is always picking up some of the guitar but this will vary as I move around, so the PU evens it out. 
We have played at festivals this way and the sound man was very happy to not have to ride solos. 

Good tips and thanks to all.  I decided on a volume pedal that also had EQ and a low battery indicator.
For the amount of live gigs I do, I don't need a powered pedal just yet.
 
 

Hi sock monkey.  Thanks but I got one of those push button floor types - not a foot volume pedal.  
 
I would probably fall over if I got one of those!