The best system I have seen was what my local cardshop does with the mats they are selling. I am not sure where they got them - but they have giant toploaders that fit the playmats perfectly! This protects them and allows you to store them flat instead of rolled (which keeps them from curling...
Are you a PokeBeach premium member?
No
What is your PTCGO screen name (the name you battle with, not the name you log in with)?
KrakenCove
What time zone do you live in? (If you don’t know what time zone you live in, use a World Clock to find out.)
EDT
Did you play in April’s tournament?
No...