One thing that I did not take into consideration is location! I live in a large city with Walgreens stores located about 3 miles apart from each other. In addition to the tremendous number of stores, our region is really hurting for pharmacists and sometimes pharmacy techs. It is easy to forget that it may not be this way in other places around the country.
If you live in a small town where there is only one Walgreens, I can see how it would be extremely difficult to get a job there. In my area it is fairly easy to get a job at Walgreens because they are everywhere and usually have a high turnover rate for pharmacy techs. Even so, the pharmacy managers will never seek out employees; they wait for the prospects to come to them. That is why a personal visit works in this particular location.
So GATTACA, if your pharmacy tech opportunities are limited due to number of stores or other factors, I can see where visiting the store may not be successful. It looks like you are taking all the right steps. I think it is VERY smart of you to call every few weeks because when a position opens up, they will definitely not overlook you!
I admit that I am extremely lucky to be in a place where tech jobs are abundant, but I still stand by my original suggestion for any applicant to follow up a phone call or computer application with ONE personal visit.