I use 2 large and heavy deck boxes made by Suncast.
They stay on elevated pool deck year round.
main problem with bugs is hornets like them, nothing worse than standing there in swim trunks, open lid and here they come.
I use to store pool toys in one and solar cover in the other.
They started as being a light tan color. After 3 years they started looking that faded, dirt look that resin takes on.
This year went through the proper process of cleaning them and painted both with a blue color from Rustoleum plastic paint.10 cans for both. Still satin finish after 6 months, will see.I have never had luck with resin not looking horrible after 3 years even stored in winter