Have you tried just baking the travel cost into your base rate instead of adding it as a separate bump? I used to do the same thing with a flat per-mile fee, but clients got weird about it on short jobs. What worked better for me was raising my hourly by $20 across the board and then just telling people up front that my rate includes travel (which saved a ton of headaches, honestly). @patricianguyen the math gets way simpler when you don't have to explain it job by job, you know?

300 parts for me and honestly even a notebook would drive me crazy at that point. Not sure it's that deep though, like if paper works for 80 parts that's fine, but calling it "fancy tech" feels like a stretch. I mean QuickBooks is overkill for most small shops sure, but a spreadsheet is barely more complicated than a notebook. Maybe it's just me but I feel like people get really precious about going analog when the real issue is just finding something that doesn't make you wanna throw your desk out the window. idk, whatever gets the job done without headaches is probably the right call.

80 percent in one go" is wild, honestly that reducer consistency thing was my breakthrough too.

Man, you're out here dropping wisdom like it's a hot mic. Pre-shave oil, huh? I'll have to try sneaking a few drops into my guy's routine next time I'm over at his place, maybe he'll stop complaining about looking like a tomato after. I mean, your method's solid, but if it saves me from hearing another rant about razor burn, I'm all in.

Yeah I tried the penny test on my own tires once and then realized I'd been driving on tires that were basically racing slicks for like 6 months... Not my finest moment. The penny test definitely saves you from that awkward moment when a mechanic just gives you that "you know your tires are bald right" look.