here's some ideas that are free.
work on kicking any bad habits like smoking, drinking, etc. (i'm the pot calling the kettle black here because i still do both
)
day walks with your BOB
organize the preps that you already have, label things, make everything easier to grab and go faster and easier.
every time you go grocery shopping just buy a few more things than usual (canned food... anything with a long shelf life... check out ZombieTactics on YT, he's got a great series called "Food prep for the Lazy, Late, and Cheap)
dry-fire practice with your guns around your house
sharpen all your knives
clean all your guns
that's all i got off the top of my head