If you’re super casual like me, I use the plastic cover Amazon ones like this.
https://www.amazon.com/VIZ-PRO-Tampe...cs_rp_2_i&th=1
They will get scratched up if you dont take care of them but I store mine in the box and use them for a show once or twice a year. You’ll see a lot of people set up with these now a days. They aren’t as thick so you’re limited with what you can put in them but for cards/slabs they are great. Just dont order the massive 48x36 one.