Love, love, love Homesense. Where else can you find nearly perfect Le Creuset seconds, a perfect carpet, ceiling light fixture, cutlery and a set of designer towels and not walk out of the store broke and penniless? It's a bit of a treasure hunt each visit as not everything they have is necessarily my style or quite the same quality, but if you don't mind picking through things, then it's definitely worthwhile.
The service is usually fairly quick, depending on the location. They're also great about putting items on hold for the day while you rush out to measure/check the colour etc... Their return policy is short - 10 days - so make sure you try out appliances, lighting, etc... quickly and make sure they work in your space. That said, if you do need to make a return, it's quick and painless.
It's a bit of a pain to have to keep going out to check their stock (well, I guess I don't HAVE to keep going in but I do!) but it just means there are some fun new surprises there on a regular basis.
This is the best place to shop for home decor, accessories and items for the kitchen. The high-end products are often much more discounted than those on sale at other stores. I never fail to find something I love.