These are some great ideas, especially the simple ones like bringing a garbage bag. That’s something so easy and cheap that it’s easy to forget entirely, but as you say, it can make a huge difference in the right circumstances. It’s also good that you discuss some minor bike repairs. That’s another thing that can salvage or destroy your ride. You want to be as prepared as possible for the best possible experience.
This gentleman is a true professional!! He is an ex-Marine and I will tell you that he represents them well. He is honest, knowledgeable and extremely reasonable. He repaired my son's bike while I waited and went over the whole bike and made the required adjustments replaced an inner tube and all for 20 dollars!!All the kids in the area pass by and call him by his first name. I will recommend him to everyone I know since there are very little of them out there!!
Where to begin?! Long story made somewhat short. I bookmarked this place because I saw their dog Kaya and was sold. Lol. But they had 5 stars too so that helped. Amazing people. Very down-to-earth. Took the bikes down the path to Discovery Park. If you're in-shape and do mild cardio, then it should be an ok ride. I don't do cardio and I found myself trying to sell my soul like 15 times just to get to the top of some hills. Lol. Made it to the Ballard locks and actually got to see a boat pass through! This is the off-season so not much boat traffic. Steve, an engineer we met there, said peak time will start in May. Ate lunch at Ann's in Ballard. Delish shrimp sate! I busted my tire in a pothole and had to make a trip to REI. Which wasn't awful because we wanted to go there anyway. The city was tough to ride in at 5:00pm and we rode the sidewalk most of the way back due to the congestion. Some pedestrians are obvious to you and I almost ran over a few people.. By choice. Lol. Made it back right before they closed at 6:00pm. Easy peasy! Notes: Take some water. Take some pictures. The ride is beautiful so don't rush through. Get there before noon to give yourself some time to cruise.
Modern bottom brackets use a sealed bearing type construction that keeps water and debris locked out, so they seldom go wrong. Maintenance is impossible so they need replacing when they do wear out. Older style cup bottom brackets need to be re-greased every now and again, and occasionally will need to have their bearings replaced. There are a lot more teeth on the chainring cogs than those on the rear cassette, so need changing less regularly. Cranks usually a solid one piece construction so there is not much to go wrong.