I don't have much in the way of experiece to offer, but I'm facing a similar issue, i.e. tackling a ~25mile 1-way commute in my new job location. Previously I was bike commuting a ~25 mile round trip up to 5 days a week. I'd like to resume bike commuting in my new location, to the degree practicable. I see an issue with the pre-planned, regimented "bike one way, drive the other" on alternating days, in that I like to bike commute on nice days and not on nasty ones. Some options I've contemplated, since I have multiple bikes & cars, is staging at least one bike & one car at work, so I can bike or drive home on a given day, at my discretion. I can see where this could go a little pear shaped, with all the cars ending up at home and all the bikes at work, necessitating a re-staging operation, but that wouldn't be a big deal I guess. It's also not that big of a deal to break down the bike and bring it in one direction or the other in the car, except that I've found in the case of my one fender equipped bike, even when broken down, that it doesn't fit in the trunk of a typical sedan. Well, like I said, I don't have answers yet, but I'm hoping to try this out in the next few weeks, once my bikes arrive at my new location and I suss out the bike routes to work.