1. Paint is much cheaper than wallpaper, so stick to that. Have a look in the bargain buckets at paint shops - you may find a colour you like in the sale. Think about your colour scheme first though, don't just go for the cheapest shade - blue, for instance, will calm you down but can be a bit "cold", whereas green will give a natural feel. Which colour would go best with what's there already?
2. If you're suffering from "nasty stains on the carpet" syndrome there are a few remedies at hand. Most extreme, rip the whole lot up and hope there's something presentable underneath - if there are no gorgeous wooden floorboards, you can always buy some special floor paint to add colour. Alternatively, big rugs hide a multitude of sins. Beware of angry landlords though or you may find yourself minus one deposit.
3. Lighting can change the appearance of any room and add atmosphere. Strategically placed candles are probably the cheapest option and can also help rid the room of your flat mate's unusual odour. Spotlights, uplighters, flood lights, fairy lights - give 'em a go and see what happens.
4. Buy plain stuff and customise. You may all have the same Ikea bookshelf, but they needn't all look the same. Buying plain wood is cheaper and gives you the freedom to be creative - try painting, stencilling, sticking on beads or even a bit of mosaic to get the look you like.
5. "Features" are sometimes oddities. If there's a part of your house you really dislike, disguise it or transform it into something else. An unused bidet can be transformed into a mini garden or filled with pebbles and an unsightly gas fire can be disguised with a funky fire screen you've designed. Cover up nasty sofas with cushions, throws or rugs.
6. Think laterally. Want some new curtains but can't afford any? Use a tablecloth, sheet or shower curtain instead. Need a vase but don't have one? Try a mug or empty glass bottle. Why not use that metallic fruit bowl as a hanging basket? Imagination is the main ingredient here.
7. Second-hand and junk shops are full of surprises. Buy cheap but interesting furniture, sand it down and repaint it for a more contemporary look.
8. Plants make a room feel lived in and don't have to cost loads. Remember to water them though - perhaps start with a geranium and work your way up to a bonsai later.
9. Buy cheap accessories. Rugs, photo frames, plant pots, cushions - all of these can easily be jazzed up. Give your photo frames, pots, mugs and toilet seat a face lift using nail varnish and try dying cushion covers or adding a few sequins to a rug.
10. Give it the personal touch. You want the room to reflect you, so inject a bit of yourself into the decor. That obscene photo of your best mate, your favourite book on the coffee table or pictures you've drawn framed on the wall are all good ways to claim your territory. And if you're having trouble finding the perfect flat mate, get a cat.
