The Society of Cool!
Dumbarton Road in Partick has a good few Charity Shops and then head right up Byres Road then you've got Creswell Lane with a Retro Shop in the Arcade. Also Dowanside Lane with a couple of Vintage Shops.
Head down Great Western Road and you've got the link above and another couple of Charity Shops and Vintage Shop.
Merchant City also has a Charity Shop with a vintage section at the back.
mr bens just behind t j hughes argylle st
If you don't want vintage,there's Hobbs on Buchanan St,LK Bennett in Royal Exchange Square and Cruise on Ingram St.
Thanks all for your suggestions :o)
There are lots of great shops around the city centre if you have the time and patience to look around Liz. You can get the underground up to the west end too so everything is fairly within reach. Happy shopping.