- Honestly, I’m not convinced a vent gap is the answer—had a similar thought and tried cracking one window just a hair last winter. Didn’t really help...

- Totally get holding onto the old panes—mine are still propped behind the shed, just in case I get nostalgic. - Rebates were a pain here too. Almost ...

- Tried to file a claim on my old wood windows (installed 2011, Midwest climate, decent brand). Warranty said 20 years, but the fine print was brutal....

- Definitely agree on the hidden electrical—pulled a window in my ‘72 split-level and found a random wire just dangling. Had to pause everything and c...

- Been there with the chunky trim idea. In my 1960s split-level, I thought “bigger is better” would hide the wavy bits… but the trim just made the wal...

- Totally agree, that film is a lifesaver in a pinch but it’s not exactly subtle. - Tried foam tape too—works okay for a season, but mine peeled off...

Good points, fiberglass definitely seems more stable overall. A few years back, I installed vinyl windows at our cabin, and yeah, those creepy creaks ...

Couldn't agree more—window film surprised me too. One thing I'd add is checking your exhaust fans, especially in bathrooms and kitchens. I found mine ...

- Good points above, but just wondering...is the warping on vinyl windows mostly cosmetic or does it affect performance too? - I've had fiberglass for...