moon·light·ing.
-verb (used without object) to work at an additional job after one's regular, full-time employment, as at night.
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a free to join dirctory for moonlighters, just launched for the UK. £5 free credit to get you started!
Great for part time work, working around childcare commitments, earning extra cash, working from home, secondary income, supplementing your pension or debtbusting.