ChefSam...thanks..I already feel welcome here

My first organizing goal is getting all my photos that are spread
everywhere into acid free containers and then the VERY
favorites into an album. It really bothers me to think of some cherished photo and not know where it is. Recently I found some special old photos crammed into a box that has been in the attic.
Yikes...
I want to know all photos are in one place.
I thought I had read that some plastics are safe ...
Anyone know what plastic storage containers I could use???