I am living in Germany for 3 months only due to a summer research internship. Because of the difficult housing market, I will be living between 3 apartments (now until 6.17, 6.17 - 7.1, and 7.1 to 8.31).

I am expecting to have an important shipment of contact lenses and graduation photos mailed to me from the USA. However, I cannot figure out a solution of how to receive them.

1. I would set up a DHL Packstation, but it requires a German phone number which I do not have. I also do not see the point of getting a German phone number for my short time here.
2. The institution where I work does not receive parcels.
3. Since as I said before that my residence addresses will change, I do not want to receive it at my current address in case it arrives there and I am living somewhere else. My current apartment building also does not do a great job organizing parcels. It is often common to parcels lying around at the entrance.

Any advice would be greatly appreciated.