getting coin from multiple banks help as well. A good way to sort of stay of the radar is getting boxes at multiple banks that way you dont become burdensome. When I first started I got greedy and had one bank ordering me a lot of boxes per week and they they wanted to charge fees and then thought that I was melting them all down so they refused to order more. Despite the fact that i was just collecting them, unfortunately that bank is a lost cause now.
Some of my banks just order weekly along with the rest of there coin and its never been a problem. They always smile and head to the valut for me or tell me they have 1 or 2 boxes.
this allows me to search 3k to 8k per week of halves with out paying fees.
However there are some CRH in my community that do order boxes and pay the fees. One bank said they had two customers that got one box each week and paid $7 per box.
Some banks have set limits on how many halves you can get $100 worth at a time. As some CHR here have been a problem.
Some banks will also feel that your redepositing the coins you got with them at a different branch costing them money, This has only happened at one branch but they also claim that sending a bag into the fed costs them $50...yeah right.
Strange enough I have another bank that wont order me halves unless I redeposit most of them back too them. For every $1000 ordered they want me to deposit most of them back each week.
I guess it just depends on bank policy.
One bank a town over from me has one guy who buys 10 to 12 boxes a week and deposits them at a wells fargo, and they are used to taking bags and bags of halves, its normal too them, a great single dump spot.
Otherwise I find for dumping its easier to dump at multiple banks that wont order halves. This also has the benefit of getting halves deposited back into fed boxes as you will get your own coins back, but you want whats in those bags! If they have a policy of not selling bags this gives you a crack at getting at them.
I find that if I hit a few different branches for dump and only show up in there eyes once every couple weeks or months. They dont mind it. For the banks I dump at and abuse I also keep my business banking there and deposit checks and do my credit card processing though them as well. They cant complain as I make them good money.
Time and experience will allow you to find what works best with the people in your community and bank policies. Best advice is to just be as nice too them as possible. It gets you a long way, free non US coins and lots of silver!