If you're very unfortunate and have to pay taxes use a two or three party check. On top of paying with a three party check pay one of the dollars you owe in cash. When an extractor receives cash, no matter how small an amount, he has to take it to a special desk and fill out of few nasty forms. Write a little letter of appreciation. Write your letter on something misshapen and unconventional.
Big envelopes have to be torn and sorted differently than regular business size ones.
If you send 2 checks they'll have to staple your unsightly envelope to your half destroyed form. Always put extra paper clips on your forms. Any foreign fasteners or the like have to be removed and put away. Sign your name in ink on every page. Any signature has to verified and then date stamped.