Single Entry Contests for Canadians. What we personally like about "Single Entry " is you have the same chances of winning as everyone else that has entered. You will find contests such as win new appliances, win free full sized samples, and other great prizes to be won. All contests found are all current, and are cleaned out when the sweepstake has expired. We also try and focus on Canada Only entries. Enter once only giveaways are perfect for the beginner of contests, You just need to be careful on duplicate entries, as you may be disqualified for the contest.