Collections

Why do people collect things?

Why do they chose to collect what they collect?

I can tell you that I have a collection of collections.

I collect bottle caps

I collect tshirts

I collect music

I collect glass bottles

I collect pencils

I collect coins

I collect pictures

I collect postcards

I collect wrappers

I collect smashed pennies

I collect playing cards

But what do you call a collection of recollections?