Mail, Post Office, Sending a package.?

Question

Im sending a package from california to michigan, it probably weighes between 10 and 20lbs and is full of baby clothes i need to know if i have to put the address on the box and then take it to the post office or if they will put it on the actual postage sticker thing.

Do you know how much it will cost to send it?

Thankyou in advance.

Answer 1

it goes by weight, call them , they should give  you a price ,for over nigth, next day   two days, and they do all the paper work

Answer 2

You can address it yourself.

Try to compact the items as much as possible, because now parcel postage is calculated on shape and weight.