One of the highlights of the Canadian homeowner's year is saying bye-bye to winter and hello to warmer weather and outdoor living. Want to make sure your first backyard bash leaves your guests in awe? Here's how: Add some flare with interlocking - Adding interlocking stones to your outdoor design adds a clean, sleek finish to any yard. To really make it your own, experiment with different-sized stones and designs. Some of the more modern stone incorporates different stains and finishes…