Deliberate mismatching.

I have this settee. It's in a lovely plaid selected by my mother. I want a modern fresh and very comfy, warm feeling living room that makes you feel inspired on entering the space. Trouble is that my husband refuses to get us more into debt. So I can't by a new couch or get a cover or upholstery done. We simply don't have the money. I am told to wait a while until things are looking rosier. Until we quit paying for the rental we moved out of prematurely and the new mattress we bought today after discovering a coating of mould on the bottom.

I stopped and analysed the situation. I have to live with it. I have no choice so I went online to see how can I reinvent the plaid sofa. I came across an idea that got me quite excited. So the key here is to deliberately mismatch pattern and colour. I am going to more than likely very cheaply, make some clashing, vibrant plaid pillows and throw cushions to get the type of vibe I want. Even better if I can get some fabric from Thrift stores with reds, lime greens, purples, oranges and blues that will give this place the punch of colour I so desperately crave. The room to me at the moment seems dull, muted and the opposite of vibrant, energetic. I am a lover of sparkle, light, or colour and of patterns that are as loud as I am. It seems too formal. I relax here but with a few splashes of colour I feel like I can really facelift this thing. Comments please, and suggestions?