There's one more thing you can do to indicate that it's a private laundry: add the "access=private" tag.

You'll need to do this manually: with the building selected, click the "All tags" label at the bottom of the left-hand panel to expand it, click the plus sign at the bottom of the list of tags, and enter "access" in the first column and "private" in the second column.

It's much like setting the "allowed access" field for a road or a parking lot, but it's a rare enough thing to do that there isn't a dedicated user-interface field for it.

The best imagery in the Spokane County area is "Esri World Imagery". It's newer, sharper, and better-aligned than anything else.

And reverted.

The easy way would be for someone to use the JOSM "revert changeset" tool. If nobody else does it first, I'll get to it in a few hours.

If the signs don't exist, don't tag as if they did. Advisory speeds on exit ramps are reasonably common, but I'm pretty sure exit 299 doesn't have one -- I didn't map it as having one, and I've got pretty good coverage of I-90 between Spokane and Butte.

Where are you getting these speed limits from? In my experience, freeway off-ramps almost never have speed limits, and and rapid-fire speed limit changes like you've added to Appleway are nearly as rare.

Are you sure the gas station you added to Goodsprings is in the right place? I'm not seeing anything gas-station-like in the aerial imagery, and it doesn't fit the usual pattern of where people build gas stations.

The "apartment complex" tag is meant to go around the entire area - buildings, parking, garages, lawn, and all. There's also an "apartment building" tag for the actual building.

I've only got one or maybe two pictures of the large open area of Holmberg from my last visit, but they show it as being grass-covered rather than heath-like.

Please don't abbreviate names. It's easy for a computer to create an abbreviation if it needs to save space, but almost impossible to expand an already-abbreviated one. For example, should "ST" be expanded to "Street", "Saint", or "State"?

I don't suppose you could do this on a smaller scale, perhaps state-by-state? It would make it easier to double-check things.

Welcome to OSM!

I noticed you removed a police station in Toronto. If the building is still present, the best way to indicate that it's no longer a police station is to re-tag it as a plain "building".

I don't know if you're aware of it or not, but there's a quick way to make good-looking building outlines: once you're done tracing and tagging a building, you can highlight it and hit the "S" key to square the corners up. It makes it easy to get precise right-angled corners.

When you're adding parking lots, please don't glue them to buildings like you did here. Even if it looks like they run up against each other, it usually turns out, when better imagery becomes available, that they don't.

When I drove through there a couple years ago, MT-200 left the interstate at exit 109, not exit 107. Has that changed?

What imagery did you use for the North Spokane Costco? The most recent I'm aware of (ESRI) just shows a construction site, not the details you've added.

Welcome to OSM!

When you're adding a road to the map, make sure it's connected to the other roads. You can tell this by the presence of a small grey dot at the point of crossing. I've fixed the north end of this alley, but it's something to keep in mind in the future.

I'm not aware of any law that states that you're not allowed to turn from one dead-end street to another. For that matter, I'm not aware of any law that makes a "Dead End" sign anything but an advisory notification.

Could you point out where in the Revised Code of Washington I can find this? I suspect it would be somewhere in Title 46 ("Motor Vehicles") or Title 47 ("Public Highways and Transportation").

A couple of mapping tips:

1) Once you've drawn something, you can square up the corners to a perfect 90 degrees by right-clicking on it and selecting "Square" from the menu, or by hitting the "S" key.

2) You can change which background imagery you're using by clicking on the "Background Settings" tab (the one that looks sort of like three stacked sheets of paper) and selecting which imagery you want. In the Sandpoint area, it looks like "DigitalGlobe Standard" is the newest but blurriest, "Esri World Imagery (Clarity)" is the oldest and sharpest, and the default "Bing" imagery is an average. The grassland you added here looks like it's been partly built-over in the DigitalGlobe Standard imagery.

Esri claims a maximum imagery alignment error for the urban parts of Spokane County of no more than 0.4 meters: https://www.arcgis.com/home/webmap/viewer.html?webmap=c03a526d94704bfb839445e80de95495, and comparing against Strava heatmap data says they're right.