The Survival Mom, $5 Preps - You CAN Afford to Prepare, and Food Storage on $5 a Week. As you find what fits your lifestyle, family, budget, time, faith, and level of concern, you'll quickly find your favorite resources. Some may stop there, others may go Patrice Lewis style, others may end up a Rawlesian.
The best advice I can give? Just start. Start somewhere. I make a habit to concentrate on buying certain items every month. From there, I try to pick up three extras of what I run out of every week. (Need a new toothbrush? Buy three extra. Toilet paper? Three extra. Canned peaches? Three extra. Dog food? Ha. At $20 a bag, I only have one extra. It's okay. Just do what you can. For your budget, that may mean an extra can of soup, fruit, and box of mac and cheese every grocery run. Ultimately, know that, more than anything, our faith (spiritually) and our ability to adapt (physically and mentally) is what will ultimately see us through whatever this life throws at us.
If you have resources or tips of your own, please feel free to leave them in the comments. Questions, too. Criticism of preparedness and the desire to provide for yourself and your family in uncertain times? Move on and do something productive and meaningful with your time. This likely isn't a forum for you. -Brin