I'm sure this question has been answered but I couldn't find it. Essentially I'll be in Vegas in 2 weeks with a brand new phone and no phone plan at all. I'd like to have a number where I can be reached (just texting or email is really all I want). Can I just go to a place like Walgreens and pickup some short term sim card? How does that work, I pay $20/$50/$100 and get a temporary number? Sorry for the newb question but I have always just used my current plan back home which I won't have until a week after vegas.