Dear 100 Hour Board,
What's the easiest way to send a package from on campus? (I don't have a car.) I want to send my sister across the country some chocolate and a little thing I made. Also, do you know where I could get a little bubble mailer/shipping box and how much it might roughly cost?
-Inexperienced USPS fan
Your best bet is probably the BYU Print and Mail office in the Press Building next to the MTC. It can be hard to find, but if you go to the Press Building and ask for directions, I'm sure you'll get there.
The cost of a box or bubble mailer depends on the size (you know this already I'm sure). The Print & Mail website says they operate through UPS, FedEx, and the USPS, so you should be able to buy USPS boxes there. In that case, a box and shipping should cost you less than $10, variation depending on box size and whether you pick Priority Mail or First Class mail options.
Dear postage stumped,
In addition to the place Guesthouse mentioned, there is a post office in the basement of the BYU store near the religious collection part of the store right next to framing. I called them, and they said that bubble wrap is 25¢ per sq sheet, small boxes are $1-3, and you can send a variety of ways, but the cheapest option UPS ground, where depending on where it's going and the box and time frame for shipping, costs $7.50 on the low end and $12 on the high end. If you're shipping something the size of a small toaster oven, I think you're looking at around $1 for bubble wrap, probably $3 for a box, and maybe $10 for the shipping, as a reasonable estimate, so around $14. They can help you figure out details, and the lady I talked to was super nice.
I would add that the benefit of going to the place Guesthouse suggested is that it will probably have more options, but I think if it's a relatively simple package, you should be good with the post office in the BYU store.
Best of luck!