spacecase0

more and more people want to save seeds for long term,
and buying them is easy,
saving them from plants is easy
http://www.seedsave.org/issi/issi_904.html
http://realseeds.co.uk/seedsavinginfo.html
http://www.nativeseeds.org/how_to/seedsave
this one gets things the others miss
and another site here but they make you give your contact info to get the seed saving info

but storing them for long term is something that most people miss when they have a personal seed bank
there are many ways that work,
here is a good overview

and this guy has some amazing info on how to set up a seed bank where the seeds will last longer than the big commercial ones at a way lower cost.
http://www.seedcontainers.net/a_guide_to_long-term_seed_preservation.html