Interested in ideas to give a new lease of life to my sofa and 2x armchairs. They're about 15 years old, inherited from the in laws but still in remarkable shape and very comfy so I'm not about to get rid in a hurry, however they're looking a bit worn and tired. Wondering whether slip covers would be an option or is the upholstery on the arms, especially the buttoned bits and wood trim too fussy?