Mod Podge and other Decoupage products are necessities in your craft room! But they are a bit pricey.
Try making your own - easy and thrifty.
Use 3 parts white glue and 1 part water. Put it in a jar or other air tight container. Shake Shake Shake!
This creates a matte finish mix.
Thrifty411 - Frugal and Simple Living Without Giving Up The Things You Love