If i had to use the Band Aid method I would probably have to be the most accident prone person on the planet to have sufficient quantities. There are ~6K iris seeds, 3K daylily seeds, 4K daffodil seeds, and ~100 stalks of Sempervivum seed I have either crossed or saved the seed. As I told Lynn and Cynda "I have enough seed to plant all of Salem, not just my 3 acres".
The glassine envelopes are cheap and can be used over if you're careful. I have been using the ungummed ones and then fold the envelope in the middle so there is no leakage and then put that in a coin envelope for more sturdy storage. You can also put multiple glassine envelopes in a coin envelope although I generally do just one seed head/ coin envelope.
Polly had one bedroom that she kept for the purpose of seed collecting and storage. Mine are sharing space with my musical instruments. Too many hobbies!
Kevin