Keep out of the red and in the pink this week.
Stay late at the Science Museum on Wednesday
Tonight: Late Shift sees the National Portrait Gallery open till 9pm tonight and tomorrow with music and gallery tours; an after work opportunity to see William Hoare's portrait of Ayuba Suleiman Diallo.
Saturday: Join the Bow Creek Foreshore Clean-up with Thames 21, 8.30-11am (and Sunday, from 9am).
Soul Shack brings classic Motown, stax and Northern Soul to the The Royal Sovereign, E5 from 8.30pm-1am, free entry.
Sunday: Social Sunday Open Mic offers a chilled out canal view and eclectic live music from 7.30-11.30pm. At Inspiral 250 Camden High Street, NW1. Free entry.
Monday: The Good Ship Comedy Club in Kilburn is just a fiver - or four pounds in advance - for laughs from Pete Firman, Gerry Howell, Kishore Nayar and Sooze Kempner. Reserve via firstname.lastname@example.org.
Wednesday: The adults only Science Museum (pictured) late is all about attraction from 6.45pm including speed dating and a cockroach tour (?!?). Free, till 10pm.
Have you got your Burns Supper sorted? Let us know what you're up to on the cheap.
Suggest an event for London on the Cheap. Leave a comment, email email@example.com or tweet us @londonist #lotc.