Yea, i work in a retail store and must say, our managers just accept hundreds of CV's off people and throw them in the bin STRAIGHT AWAY!! They glance at them for 5 seconds, and that only once or twice has something jumped out from the CV, and they have bothered reading it properly.
The only way to apply is the official way, through the companies website on their careers section, or as you did, filling out an application form, but i would have personally gone and handed it to the manager himself.
I must say, when I applied for my job in a retail store, I literally staked out the store for a few days lol!! (It was a small mobile phone store) so yea, id just go in, find out everything about their products on sale, even eavesdrop on how they were selling them....then i went for the face to face interview and the manager recognised me as the guy who kept coming in lol!! I think thats what swung it for me in the end, I had no experience at all, it was my first job, but I suppose it showed dedication or how much i wanted the job!
All I can say is good luck, and dont give up, dont rely heavily on just CVs being sent out, try out some employment agencies if you can.