I also use my phone as a hot-spot to check this site and my email. This month, for the first time ever, I capped out my 15 Gb limit, well before the end of the month. I haven't changed my on-line routine and until your post, had no idea what may have caused my additional usage. We have an unlimited Verizon plan, but when my hot-spot speed went down to about 500 K, we found out Verizon's unlimited plan actually limits hot-spot usage to 15 Gb.
