Hi,
With the addition of the "Custom CSS Class" option some time ago, this is actually a lot easier now and you don't need to use ModuleWrapper at all. Also, the limitation on which modules you can use is gone if you use the method below.
For example, if you have two modules that you want side-by-side all you have to do is create some CSS classes and rules, and add those classes to the module settings for each module.
Add this to your CSS:
.float-left { float: left; margin-right: 15px; }
.float-left + .float-left { margin-right: 0; }
.float-left + .float-left:after { content: ""; clear: both; height: 0; display: none; } /* this clears the float so you don't mess up the layout */
Click the settings link next to modules you want side-by-side and add "float-left" (without quotes) to the "Custom CSS Class" option.
HTH,
Joe D.