1. Sell your photos
Your holiday snaps can be more than just something you bore people with at dinner parties. If you have an aptitude for photography then selling your pictures to photo agencies could be an easy way to make money for years to come. You don’t have to be a professional to sell your pictures - just good. Try www.fotolia.com, www.123RF.com and www.PictureNation.co.uk which are all online agencies that will take good photos and sell them on for you.

2. Video your hotel or resort
If you have your videocam with you on holiday then film your hotel or resort and upload it to Tripr.tv. Future holidaymakers can browse the site and watch reviews of hotels they might consider themselves. The videos (which range from the very complimentary to the completely brutal) offer a candid, customer’s eye-view – often more helpful than photographs on a sleek hotel website. Every time someone books a stay at a hotel using the link at the bottom of your review, you’ll earn a whopping 33% of the commission.

3. Tell others about your holiday on www.Yuwie.com
Make some extra cash through signing up to social networking site Yuwie and reviewing your holiday. You can set up a profile, do a blog, upload photos and videos and basically do what you do with all the other networking sites, but make money at the same time. You can also make money by signing up your friends, and even when they in turn sign up their friends. You get paid by PayPal or by cheque.

4. Review your holiday on www.Qype.com
Qype is another site where you can earn points for writing reviews. Once you get 1,000 points you could become a “Qype ninja” and get a box load of goodies. Writing a review nets you 8 points but writing the first review of a place earns you 20 points and uploading a photo gets you 2 points. If you attach a video that’s another 4 points and if you invite a mate to Qype you’ll get 25 points.

5. Sell essentials to campers
If you’re planning a trip using a camper van you can sell useful products to other people staying in campervan parks. Stock up on essentials like cleaning products, underwear and tools at a cheap supermarket and sell them at a markup. Check first with the owners of the site that you are allowed to do this. If not, find a spot nearby where campsite residents will walk or drive past and sell your wares there. Again, there will be different laws about selling on spare ground depending on which country you are in, so check first.