Gather your pocket change and hold your head high. There's some place to be every day of the week, no matter how skint you think you are. London provides.Friday: Urban75's Offline Club in Brixton is about to be Balkanised by the Trans Siberian March Band, a 12-piece brass rabble described as "Balkan ska meets Ottoman battle punk." With support from very Londony rag-and-bone punks Jarmean?.Saturday: The Barbican's Beyond the Wall: New Music from China season launches today under the hand of Tan Dun, who's beginning with a free showcase of the traditional musicians who inspire his own work. The Zhangjiajie Folk Daliuzi Group bring musical styles and instruments the Barbican has probably never heard before.Sunday: Continue this week's global wanderings to the British Museum, where they'll still be celebrating Friday's Norouz. Family friendly Persian New Year activities are tied in with the Shah Abbas show and include puppetry, film, and crafts.Monday: Why buy tickets to the Royal Academy's ongoing Palladio exhibition when you can see the style in its natural habitat? A guided walk around St. James's Park will reveal high Palladian architecture in full bloom, hopefully with spring weather to match.Tuesday: Learn about the early telescopic study of Mars, its terrain, and its native inhabitants at the Royal Observatory Greenwich at this £5 evening lecture. Don't laugh at the canals; they did their best.Wednesday: On a more current sci-tech note, what would you do with a high powered laser? Professor Steven Rose, Head of the Plasma Physics Group at Imperial, gives us a few ideas. Turns out there's so much more than holding the world to ransom.Thursday: Places we don't go often enough: Lithuania, and Stratford. Today's the day with Grove Square turning Baltic for a traditional Lithuanian Easter Fair. We're not too sure what Lithuanian food, drink, music, or dance involve, but that's why we want to check it out.