The GOSH Blog
eCommerce marketing insights.
Strategies that work, tactics we've tested.

How to Find Your Optimal Email Frequency
Too many emails and people unsubscribe. Too few and they forget you. Here's how to test your way to the perfect sending frequency in Klaviyo.
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The Year-in-Review Email: How to Turn Data Into Your Best
How to build a year-in-review email campaign in Klaviyo that drives engagement, reactivates dormant subscribers, and generates revenue — with templates…
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How Often Should You Email Your List? The Real Answer
The 'right' email frequency isn't what most marketers think. Here's how to find your sweet spot using data, not guesswork, and stop leaving revenue on the…
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eCommerce Email Design in 2026
Email design trends shift fast. The heavy HTML templates that worked two years ago now kill deliverability.
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Suppression Lists in Klaviyo
Suppression lists protect your deliverability and keep you legal. Here's how to manage them in Klaviyo without accidentally blocking revenue or violating…
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Triggered vs Scheduled Emails in Klaviyo: When to Use Each
Triggered emails fire based on customer behavior. Scheduled emails go out on a calendar. Here's when each type is the right choice and how to set them up in…
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Conditional Content Blocks in Klaviyo
How to use Klaviyo's conditional content blocks to personalize emails based on customer data. Show different products, copy, and CTAs to different segments…
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17 Email Subject Line Formulas That Get Opens
Your email is worthless if nobody opens it. Here are 17 subject line formulas with real examples that consistently drive 30-50% open rates in eCommerce.
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CTA Button Design in Klaviyo Emails
Your Klaviyo email CTAs are probably costing you clicks. Here's the button design, copy, placement, and color strategy that actually drives revenue.
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Email Header Design in Klaviyo
Your email header sets the tone for every message. Here's how to design Klaviyo email headers that boost engagement without hurting deliverability.
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Double Opt-In vs Single: What's Better for Revenue
The real trade-off between double opt-in and single opt-in for eCommerce email lists. Data, deliverability impact, and which approach makes you more money.
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The Complete Klaviyo Setup Guide for Shopify Brands (2026)
Everything you need to set up Klaviyo properly for your Shopify store. Lists, segments, flows, campaigns, deliverability — from a Klaviyo Gold Partner agency.
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Sendlane vs Klaviyo (2026): Deliverability, Pricing, Migration
Sendlane vs Klaviyo for Shopify DTC brands in 2026 — real deliverability, per-contact pricing, segmentation depth, and migration cost. Which one wins for your revenue tier.
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When to Let Subscribers Go: The Sunset Strategy
Holding onto unengaged subscribers tanks your deliverability and costs you money. Here's how to build a Klaviyo sunset strategy that protects your list.
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Flows vs Campaigns in Klaviyo: When to Use Each
Flows and campaigns are two different tools for two different jobs. Here's the decision framework we use for 150+ Klaviyo accounts so you never send the…
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Klaviyo Automation Rules Explained: The Complete Breakdown
Klaviyo automation rules control when customers enter and exit your flows. Here's how to set them properly so your emails hit the right people at the right…
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SMS Compliance for eCommerce: TCPA, CTIA, and Not Getting
The real-world guide to SMS compliance for eCommerce brands. TCPA rules, CTIA guidelines, opt-in requirements, and how to send texts that make money without…
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Dark Mode Email Design in Klaviyo
30%+ of email opens happen in dark mode. If your emails look terrible there, you're losing engagement.
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