Buy a solar oven! I've searched to find the most cost effective way of cooking for single moms (and everyone else!). These are a good price & work really well! Email me for a flyer. I sell the SOS Sport & Global Sun solar ovens. Prices include shipping to your door. https://sites.google.com/site/singlemompreparedness/solar-ovens.
Click on photo below to go to info/order page.
Now that it's after Valentines you might want to consider stocking up on chocolate & candy! You can store it in jars, put it in #10 cans, things like that. Then if you're living off your food storage someday you have treats! After some holidays we end up with a lot of extra candy around! Or sometimes there are super great candy deals! I always stock up, & then the next time I seal #10 cans I put the candy in those. It's my belief they will be a huge moral booster someday! And they might be fabulous for trade too!