Hi everyone! I'm a (male) postgrad student who arrived in the UK about a week ago to study at Durham. I'll be needing to do a little clothes shopping soon, and looking around the city centre, there mostly seems to be higher-end clothing stores. What are some British equivalents to something like Old Navy? You know...somewhere with decent guy's clothes that aren't super expensive? Thanks 
Head to Sunderland or Newcastle, more choice.
H&M, Primark, TK Maxx that sort of thing.
Whereabouts in Durham are you living? There is an outlet place not far away at Murton too which has a next outlet, amongst others. Some of the supermarket stuff isn't too bad either, depending on how fussy you are, Tesco's F&F and Sainsburys TU etc.
Van Midert in Durham (high end store) always have a half price sale on the day after Christmas, that might be worth a look too.
Sunderland or Newcastle will be your best bet though, depending on where you live.
