I looked at my 3 white rice vinegar bottles (700mg each) in my pantry, and the oldest (marked 1-21) was $3.29, and the others, from 9-21, were $3.49 each. The store I got them at was a Korean store, right next to my ophthalmologist, so I stocked up on a few things. Didn't go up that much in that amount of time, but I haven't been lately.
I went to Aldi today, for the first time in quite a while, and some things went up, but just as many went down in price, if they changed at all. The one that caught my attention the most was butter, which went up a dollar; fortunately, I wasn't in need of this, since I stocked up for the Christmas cookies. A number of spots were bare on the shelves, but most were well stocked. And the freezers were packed again, while last time they were almost empty.