Pantry Pests

Pantry Pests

I seem to have an infestation of two kinds of "pantry pests" in my kitchen, sometimes spreading out a bit into the dining room - confused flour beetles, and larder beetles. The flour beetles got in through a box of pasta, and I'm not sure about the other ones--I assume through cat food. Other than the obvious "keeping everything relatively spotless" advice (although if you have any specifics, do tell) are there any natural/inexpensive ways I can get rid of them, without having to buy super-pricey sprays or hire an exterminator? I'm not having much luck so far. Thanks so much in advance, this has really been stressing me out.
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