Direct mail, explained plainly
- Postcards
Postcard sizes and USPS rules: what counts as a postcard
USPS postcard size limits in plain words: the postcard price, when a bigger card mails as a letter, thickness, aspect ratio and the address side.
November 11, 2026 · 6 min read - Direct mail basics
EDDM vs. targeted direct mail: which one fits a local business?
How USPS Every Door Direct Mail works, its real size and quantity rules, and when mailing a targeted list of named people is the better choice.
November 11, 2026 · 6 min read - Measuring results
How to calculate direct mail ROI (with a worked example)
The seven formulas for measuring a postcard campaign, from cost per piece to break-even response rate and ROI, with one fully worked example.
November 11, 2026 · 6 min read - Data sources
Building permit leads explained: what they are and how to use them responsibly
What a building permit lead is, why permits are public record, what a permit does and does not tell you, and the rules for using permit data fairly.
November 11, 2026 · 7 min read - Postcards
QR codes on postcards: size, placement and what a scan tells you
How to print a QR code on a postcard that scans the first time: size, quiet zone, contrast, short links, proof testing and what a scan really shows.
November 11, 2026 · 6 min read - By industry
Direct mail for Florida insurance agents: who to mail and what the card must say
A careful guide to postcards for Florida insurance agents: who to mail, what Florida's advertising statutes require, and what to ask your carrier.
November 11, 2026 · 7 min read
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