While Mod Podge is a great product and we love it, if you need to use a lot of it, it could get expensive. You can choose to make an alternative solution that is similar to Mod Podge using white glue and water. Here are two recipes for making homemade
DIY 'recipe' for Mod Podge ~ I have never used store brand Mod Podge, so I'm not sure what the consistency is supposed to be like, but when made per this, mine came out more watery than I was expecting. Still works though! Next time I will add less water.