Anyway the shelf-life of heirloom seeds depends on what plant species they are from & how they are stored, some are only good for a year or two, while others can be stored for several years.
Just remember that every season that they are not planted a percentage of them will go bad & will not germinate, regardless of what species of plant & regardless of how they are stored.
They (the seeds) are still living things, even if they are in a sort of dormant stasis / suspended animation they will eventually die if they are not planted.
Boots, Boots, Boots, phone books, salt, vinegar start kits, dental items, hand tools... The Patriots, Surviving the Coming Collapse.
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Personally, I've evaluated my inability to work on anything mechanical over the last couple of years and I've tried to overcome that. I got a good set of solid tools (doubles on most things) and started doing my own work on my cars and bikes. And doing more hands-on work around the house. I'm sure I don't do things as well as a pro but I am acquiring knowledge and getting better all the time.