Mod Podge

So... I have been working on a project for most of the afternoon. I can't show you because it's a secret. I have had to use Mod Podge for this project. I HATE Mod Podge and usually prefer not to use it. Since this isn't for me, I figured I should use it so it would hold up (is that it's purpose?) So, first---I am out and I have to go buy it $7.50????? Are you kidding me? That is a ridiculous amount for this stuff. I am paranoid about it bubbling, so I go pretty thin with it and what does it do?? of course....bubble. I think the stuff is impossible and a pain in my behind. So, I am reminded why I usually DON'T use!!! but they maybe I'm just mod podge incompetent.