Here is an add on tips for Metastock users:
If you wish to see a new clean price chart, but still wish to keep the existing studies (indicators, trend lines etc), instead of deleting all the studies and then later put back, you can create a new clean price chart with the use of templates.
Here is how:
1. Create a the new price chart the way you wish to see it
2. The click [File], [Save As] give it a name (say "Plain Price Chart") and save as template
3. To use this template in any other charts, open that chart, right click on the chart, [Apply Templates...] and choose the name of template ("Plain Price Chart") that you had given, then [Open] and done.
If you use a version of Metastock (mine is version 8) that allow you to customize tool bars, you can add that templates on your tool bars by: right click, [Custom Tool bars Properties...], [New], [Browse] and point to the template you just created, give it a name and description, choose an icon and done. From here on, you "Plain Price Chart" is just one click away.