All Guides
How to Address a Postcard, Step by Step
How to address a postcard the right way: which side the address goes on, where the stamp and return address sit, and how to address them in bulk.
How to Address Save-the-Date Postcards
Address save-the-date postcards the right way: guest names and titles, the address layout, stamp placement, wording examples, and where to print.
What Is EDDM? Meaning, Cost & USPS Rules
What is EDDM? Learn how Every Door Direct Mail works: USPS rules, postcard sizes, route targeting, and real costs per piece. See if EDDM fits your campaign.
Printing Paper Stocks Explained, from Matte and Gloss to Linen and Kraft
Matte, gloss, linen, and kraft paper stocks explained. What each finish is for, how to choose the right one, and what it costs to print at 4OVER4.COM.
Paper Stocks & Materials and How to Choose the Right One
Choose the right paper for any print job. Compare stock, weight, and finish, from cover vs text to silk, soft touch, kraft, and recycled, at 4OVER4.COM.
How to Choose the Best Paper for Your Printing Project
How to choose the best paper for your print project: weight, coated vs uncoated stock, brightness, and finishes for menus and flyers.
Cardstock vs Corrugated Boxes, How to Choose the Right Material
Cardstock vs corrugated boxes explained: what each material is, common thicknesses, when to use folding cartons vs corrugated, and how pricing is set.
Cotton vs Canvas vs Recycled Tote Bags
Cotton, canvas, or recycled tote bags? Compare weight, feel, durability, and print result, then print any of the three at 4OVER4.COM from $22.73.
What Is Cardstock and Its Weights?
Cardstock explained: what it is, how weight is measured in points and pounds, and how 10pt, 14pt, and 16pt compare, with a weight chart to pick yours.
Custom Vinyl Lettering and Numbers Guide
Custom vinyl lettering and numbers: what cut vinyl letter stickers are, how they are made, which stock to pick, and how pricing works at 4OVER4.COM.
The Ultimate FDA Food Labeling Guide (2026)
FDA food labeling in plain language: the five required elements, net weight rules, the Nutrition Facts panel, and the Big 9 allergens.
How to Design Sticker Sheets (With Expert Tips)
How to design a sticker sheet the right way: plan a clean kiss-cut layout, set bleed and cut lines, dodge the common mistakes, then print it at 4OVER4.COM.
