Brightening the inside of your home will refresh the atmosphere and make your space seem larger. There are plenty of things you can do, but your indoor lighting is a good place to start. Track lights, recessed lights and flush mount ceiling lights will illuninate darker rooms, while lamps and wall sconces can shed light on specific areas. Changing a room's wall colour will also have a huge impact. Brighter walls open up the space and create a clean pallette for art and other accents.
You can also brighten up the base of a room by laying a light-coloured area rug overtop of darker flooring. Window coverings can be switched up as well. Consider muted pastel colours for your curtains, drapes and blinds. Mirrors and glass shelves can also help to reflect natural and artificial light around a room.