I did need a bag of 100 tea lights on Sunday and was stymied.
I feel your pain.
The best place to get them here, any day of the week, is The Dollar Tree.
I was driving the other night and kept seeing this weird, flickering light, dimly flashing from under the passenger seat.
I looked under there when I got home, and it was a battery powered LED tea light from a Halloween party *two years ago*, still going.
How crazy is that?