I only have access to cellular data where I currently live, having pop-ups randomly throw me to a spam site saying I've won £500 in Tesco vouchers isn't doing my usage any good. Some annoyingly throw you out of the browser and attempt to download crap from the App Store.
It's 2015, who the heck uses pop-ups?
__________________ Let me know if you like the look of anything in my collection. I want to sell it.