We recently procured a couple of large metal bins for storing chicken feed. Why? Rodents, of course. Our garden shed was once the Hilton for a couple of very plump mice. They got into the food, the cracked corn (for treats), potting soil, garden seeds, fertililzer... You name it, they wrecked it. Solution? Metal bins, and a new concrete floor in the shed. The floor won't be done for another couple weeks, but the metal bins are a great way to put an end to the mousy frivoloties. Each of these bins has a thirty gallon capacity, which means they can each comfortable hold two fifty-pound bags of feed. The one in the foreground here has that amount in it, and you can see how much room is left. Bear in mind, this means that each bin will weight over one hundred pounds when full.
The lids fit snugly, and we have yet to experience any problems since using the bins. Price your local co-op and hardware store for the best deal. We got these for about $28 each at the big chain hardware store a mile from the house. They beat the local co-op by two bucks.
Buckets with tight-fitting lids also work well, but rats have been known to chew through plastic when desperate. Ours have held up well, but we're also careful to keep them in areas with lots of activity and foot traffic. Shifty little rodents prefer dark corners and quiet places to perform their acts of pilfering. The one pictured above is home to our supply of weed seeds.
A bag this size will last a long time. We've had this one for a year already, and it's still 3/4 full. And heavy!! Ground up oyster shells are also great in your garden. They repel slugs and other soft-bodied pests, and they provide a great source of calcium and magnesium for plants. We don't bother since there are loads of egg shells to fill that need in our raised beds.