But how to spend £100? You could invest prudently on the stock market or spend it entirely on chocolate.
Or, if you're quick, you could travel to exotic destinations from Alicante to Zurich. No - you really could, and here's how:
Fancy some spring tanning? Sun is very possible during spring visits to the Spanish port of Alicante, and Monarch has a flight itinerary between 6-9 March for only £84 from London Gatwick. Between (hopefully) bronzing, make sure to see the towering Castle of Santa Bárbara at the top of town, and to amble around the ritzy harbour at the bottom.
Visiting the home of TV Show The Killing needn't be murderously expensive. easyJet has return flights from Gatwick to Copenhagen for just £68.98, including luggage, travelling 8-12 March. The Danish capital won't be especially warm in winter, but its fine architecture and finer food will more than compensate.
Go at the right time in winter, and Eurostar's Paris prices from London St Pancras can be incroyable. For a piffling £59 return, departing 21 February, you can spend a week purring over Pont Neuf and sipping chocolat chaud on the Champs Elysees, with ample spending money in your wallet.
Seemingly-attractive ski-flight prices often come with unfriendly luggage costs - meaning while you might travel cheaply, your skis sure won't. But the carriage of skis, poles and boots is included in the fee of return flights from Manchester to the emerging hub of Basel with SWISS. They cost £73 for a week departing 1 March.
The tulip markets, bicycles and pretty canals of Amsterdam beckon for those canny cruisers who book DFDS Seaways' two-night cruise to Holland's capital. Departing Newcastle on 20 February, it costs just £97.48 with breakfast.
Europe's clubbing capital is only a £98-return away via Ryanair. Flying from Stansted on 2 April, you'll have three nights to visit famed historical sites like the Reichstag or Checkpoint Charlie, to let rip in no-holds-barred clubs that never close, or, ambitiously, you could try both.
If you've got a sturdy, dependable rump, then consider coach travel as a bargain means for getting to faraway Europe. From 10-17 February (overnight both ways), Eurolines has a Prague trip for £81. The Czech capital's sensational beauty can distract from any stiffness that you might have incurred.
Carpooling is an innovative means for budget travel; you share a ride with willing strangers, who you hope aren't incredibly annoying, and stump up only for petrol. Currently on carpooling.co.uk, one 'Patrick' is currently offering three spaces on a trip to Leipzig, via Dortmund and Essen, for just over £70 each. He leaves on 3 February.
Thessa-where? Thessaloniki - it's in Greece, a land so far away and so far south that it might even be warm in February. It'll certainly be warmer than here. Somehow, Opodo has return flights from 22-25 February for a paltry £85. The taverna drinks truly will be on you...
Zurich is Switzerland's coolest city thanks to its hipster neighbourhoods, sprawling parks and boho nightlife. It's also a gateway to the country's classic mountain scenery. Departing 17 March, a five-night flight itinerary with ebookers from Luton costs £76.58 - leaving change for entry to some of the capital's popular lidos.