does anyone know if you can use a P.O. box address on a cover letter or job resume?
Yes of course you can,it doesnt really matter as long as you put or place your true address their.
like this one below: From: Richard Brown,
16 Bellers street
Date: November 3, 2010.
To: Chris Veron
Manager, Unionbay Inc.
Dear Mr. Veron,
I am writing this letter in order to ask for the leave from work for one week for Christmas holiday. I wish ask for the specific days since my family will be visiting me from December22 until December 28. I am writing you earlier in order to have more chances to get the positive answer. Please, note that this leave will not affect on my work since I will make assure that everything is in the order before I leave. My contact number will be at your disposal as well if you need something urgently.
I will really appreciate if you can give me this chance to meet my family since I haven’t seen them from last year. I would like to see you personally and discuss the details. I am always available for the additional questions in case you have them.
Thank you very much and hope for your soon answer.
Thanking in advance,
Richard Brown [link removed]
Unless you are expecting them to mail you something, it's best to use your house address.
sure if you want them to think you have no place to live... use a physical address