Are flat envelopes worth the premium?
I plan on hand writing some letters to display ads in the yellowpages offering marketing services. Each ad will point out specific ways their ad could be improved. I offer more tips as my dangler to encourage a callback.
I can send out #10 window envelopes from click2mail.com for $.80/piece or flat envelopes for $1.66 per piece (so about 2x the cost). If the flats get a better response I'll use them, since my mail volume is quite low.
Do they make a difference though? Are they seen as more serious or important? Or is this a trivial factor?
keep moving forward