Of all the people Sunfish, I'm surprised you actually sent your stuff via USPS!! Expect it to take a while mate, I'm not too far away in the South Pacific and have had items take 2 months to get to me, highly recommend avoiding USPS like the black plague!!
They usually have a number but unless you paid extra there won't be tracking. I'd honestly just give it a while longer before getting too concerned, probably a month at least IMHO.