Vintage in CA?

Question

Next Summer I'm going to southern California. I'm trying to save money until then, and I'm trying to figure out places to shop that have vintage clothing. Cheap vintage clothing (like under 100$) I'll be somewhere in the San Diego, Imperial, Riverside area..I think.

When I say vintage, I mean like 1930s, 40s, 50s vintage.

I really would appreciate it if you could help me out.

Answer 1

Only  place I can think of would be some of the movie stores. I remember seeing MGM and its store had clothing from some of the old movies.