Avoid spending too much on one thing.

Be judicious with your budget and buy things that are going to last.

People buy very badly made furniture and fabric. Instead, buy a beautiful dining table, well-made upholstery. It's almost like dressing for success.

People buy things in isolation and don't think of how they work together.

Avoid too much intense color. Make sure you mix colors and try them out. It's always good to do a swatch.

To be influenced by a magazine and, say, a Swedish theme, unless it resonates with you, it seems kind of odd and influenced.

Avoid spending too much on one thing.