Where I live (major southeast US city) there's a 50/50 chance there will be some random bullshit fee (sometimes even more than one!) tacked onto the bill (and I'm not talking about tax or a tip).
The types of fees I'm referring to are included at the bottom of the menu in 2pt font. You're typically already halfway through ordering before discovering that you'll randomly be charged an extra 20% because the restaurant relies on misleading consumers about their prices to draw them in.
The bogus fees are always taxed, and then the full amount is used to compute a recommended tip (even at food kiosks.)
One thing I did learn was to check on things like ISPs beforehand. You know the address of the place, so you can visit your preferred ISPs' websites and see if they offer service before you sign the lease. Ditto for cell service; when initially looking at a new place, I'd always check my cell phone to make sure I'd get decent service inside.