You can fake a console table by putting a cream painted shelf on the wall, with a matching painted corbel supporting it, and a nice large mirror over the top.
In terms of upgrading a house, phase out most IKEA stuff piece by piece unless it resembles Swedish antiques (Leksvig is based on antique designs, for example). Then go onto EBay and collect things like antique or vintage sideboards, side tables, dining table, single chairs or chairs in odd numbers (cheaper), silver cutlery, vintage china sets, vases, chests of drawers and so on. Check joints don't wobble (massively expensive to fix) and varnish or polish not too marked. Ask many questions of the seller. A lot of this stuff is incredibly cheap compared to IKEA, and there are firms who will quote for Ebay delivery such as Anyvan. Buy things you love in wood such as light oak, walnut, elm and cherry to avoid your house looking too dark. Avoid anything refurbished with Annie Sloan paint as underneath it is likely to be shoddy! Polish your collection with good quality professional polish when you are cleaning, to get the deep gleam and nice smell of treasured furniture.
Silver plated cutlery can almost always go in the dishwasher as long as there is no steel in there. Bone handled knives can't. Dubarry and Rattail are quite contemporary looking cutlery designs and easy to collect. Little boxes of cake forks and coffee spoons are elegant and particularly cheap considering what they are.
Vintage china can usually go in the dishwasher as long as there isn't a gold or silver rim - use Finish products.
Crystal must be washed by hand otherwise it goes cloudy.
Finally for fabrics look at magazines like Interiors and ferret out cheaper copies of stuff that is normally £100 a metre, eg botanical prints and brocades. Dunelm sometimes does copies.
Other things to dress a room include hardback books (charity shops), antique linens and candlesticks (ditto) and glossy magazines.