When I finally elected to use Vario Stock Sheets for my collection back in early 2012, I resurrected my old childhood collection that was stored in an old kids USA album and began removing the stamps and loading them into my stock sheets.
For whatever reason, I decided to start with the USA Airmail Stamps.
The image below is of the very first stamp I mounted into my album – USA Scott Number C7:
Since then, and as of today, I have loaded over 26,000 stamps into my albums in just roughly 2 1/2 years.