Wow. Taking an informal survey of earlier posts, it looks like biking and line-drying, in that order, took a real beating.
Biking: As an avid (evangelical, though I am getting marginally better at keeping my mouth shut. OK, not all that much better) 58-year-old female cyclist (who rides cheapo beater bikes summer and winter in the heart of clown-car country, Canada), may I timidly suggest the purchase of a used beater bike, and some exploratory trips around your respective neighbourhoods, even if only to the corner store, to take baby steps to maybe expand your horizons and your confidence? Do you need to keep your wits about you at all times? Yes, of course you do. But the fitness benefits, savings, freedom, convenience (believe it or not) and badassity are all (IMHO) worth it. I really hope you try it, for the sake of the planet if nothing else. Please, don't say "never". You don't need to be an athlete and you don't need special clothes. Even in hot climates, you'll get a nice breeze on the bike with minimal effort. Even if it's sweltering or freezing, there are always workarounds, and such workarounds (washcloth, change of clothing, etc.) will fit in panniers or a knapsack.
Line drying: We use indoor drying racks and we do one load per week for two people. Two loads when we wash the sheets. Hanging clothes is really not that difficult. As other posters have noted, it preserves the life of the clothes. For you outdoorsy-types: even the CEO of Levi Strauss only washes his jeans twice a year or so. Plus, we have stoopid bamboo flooring and rack-drying helps to keep the humidity level, though I can appreciate it if it doesn't work in a high-humidity climate.
As for the non-Mustachian things we do: we don't budget - habits are so ingrained that the savings take care of themselves. We also travel. And (shame ) we've been holding too much in high interest savings accounts this past year for fear of getting into ETFs at the wrong time.