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Theo Marlow

Theo Marlow is the editor of Side Margin, a site that answers practical questions about money, home, and tech with sourced, plain-English guides. Every article is researched with AI tools, then read, edited, and fact-checked by a human before it is published.

Dishwasher Not Draining Is Usually a Clog You Can Clear

October 3, 2026 by Theo Marlow

Standing water in the bottom of the tub is the symptom, and a dishwasher not draining is usually a blocked drain path rather than a failed machine. In a large share of cases the restriction sits outside the appliance: in the sump filter, in a new garbage disposal that still has its knockout plug, in … Read more

Categories Home & Living

Why Ice Dams on Roof Edges Form and How to Stop Them

October 3, 2026 by Theo Marlow

Icicles hanging off the gutter and a grey ridge of ice on the bottom two feet of shingle look like a roofing failure. They are not. Ice dams on roof edges are a heat problem in the attic that happens to show up outside, and the most useful correction you can make is to stop … Read more

Categories Home & Living

Why Your GFCI Outlet Won’t Reset and What to Check First

October 2, 2026 by Theo Marlow

A GFCI outlet won’t reset for one of three reasons, and they are easy to tell apart once you know the order to check them in. Either no power is reaching the device, or a real ground fault is still on the circuit, or the device has failed and is refusing to latch on purpose. … Read more

Categories Home & Living

Why Your Circuit Breaker Keeps Tripping and What to Check

October 1, 2026 by Theo Marlow

A circuit breaker keeps tripping for one of three reasons, and all three mean the breaker is working. Either the circuit carries more current than its wire can shed as heat, or two conductors are touching, or current is escaping to ground. The most useful correction is this: a breaker that trips repeatedly is almost … Read more

Categories Home & Living

Why Your Toilet Keeps Running and How to Fix It Yourself

September 30, 2026 by Theo Marlow

If your toilet keeps running, the fixture itself is almost never the problem. The sound comes from one of three inexpensive parts inside the tank: the flapper or canister seal that closes the flush valve, the fill valve that refills the tank, or the float that tells the fill valve when to stop. A ten … Read more

Categories Home & Living

Carbon Monoxide Detector Placement: Where, How Many, Height

September 26, 2026 by Theo Marlow
Carbon monoxide detector placement: outside sleeping areas and on every level

Carbon monoxide detector placement made simple: outside every sleeping area, on every level, away from furnaces and kitchens, plus what to do when it sounds.

Categories Home & Living

Medicare Dental Coverage: What’s Paid in 2026 and 2027

September 25, 2026 by Theo Marlow
Medicare dental coverage summary

Medicare dental coverage explained: what Original Medicare pays, how Medicare Advantage dental plans cap benefits, and what to check before December 7.

Categories Health & Wellbeing

How to Dispute a Credit Card Charge: Deadlines and a Letter

September 24, 2026 by Theo Marlow
How to dispute a credit card charge: 60 day notice and 90 day deadline

How to dispute a credit card charge: the 60 day written notice, issuer deadlines, the $50 fraud cap, why debit is weaker, plus a sample dispute letter.

Categories Money

How to Cancel Planet Fitness Membership (2026 Guide)

September 24, 2026 by Theo Marlow
How to cancel Planet Fitness membership: the deadlines that stop the next charge

How to cancel Planet Fitness membership in 2026: online, in person or by certified letter, the 10th and 25th deadlines, the $49 annual fee and $58 buyout.

Categories Money

Energy Efficient Home Improvement Credit: Ended in 2026

September 23, 2026 by Theo Marlow
Energy efficient home improvement credit ended after December 31, 2025

The energy efficient home improvement credit ended for work installed after 2025. What 2025 claims still count, how to file Form 5695, and what replaces it.

Categories Money
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