Running in the race? Cheering from the sidelines? Wherever you are, have a marathon weekend.

BUY
Powerhouse G
What: New concept clothing store for groovsters aged 8-16, with an in-house hair salon and coffee on tap.
Why: You don’t have to be an adolescent to look like one.
When: Mon.-Fri., 8:30 a.m.-5:30 p.m.; Sat., 9 a.m.-5 p.m.
Where: 167 Battersea Park Rd., SW8 (020 7622 5588).

Cabbages and Frocks Sunday Market
What: Brand new market with more than 70 stalls selling retro fashions, organic food and household must-haves.
Why: Going local will help save the planet (and your cash). 
When: Every Sun., 11 a.m.-6 p.m.
Where: St. Stephens (old church building), corner Rosslyn Hill & Pond St., NW3 (020 7794 1636).

SEE
No-Body Nose
What: Quirky performance from Theatreuno about an abandoned sneeze and a missing nose.
Why: You thought your life was absurd?
When: To 29 Apr. Tues.-Sat., 8 p.m.
Where: The Space, 269 Westferry Rd., E14 (020 7515 7799).

DO
Flourish Makeup Lessons
What: Home-visiting professionals offering individual make-up lessons or face-painting for all the family.
Why: You’ve been wearing the same foundation since you left school.
When: 8 a.m.-midnight.
Where: At home/in the office.

EAT
St. Helens Food Store
What: Unnervingly trendy deli-cafe and a seriously popular source of fresh, homemade food.
Why: If only for the white chocolate biscuit cake.
When: Fri., 8 a.m.-8 p.m.; Sat., 8 a.m.-6 p.m.; Sun., 9 a.m -4 p.m.
Where: 55 St. Helens Gardens, W10 (020 8960 2225).