–Figured out how to remove sliding glass windows: open all the way first, then tilt out. Turns out lower floor windows have hidden magnetic sensors for alarm system. Upper floor windows have visible sensors attached to frame. Discovered what might be usable replacement latches, but will probably try to replace internal springs first.
–Drove to Roseville Cyclery in…Roseville. Waited in line for a bit (four at a time allowed in), listened to a Sirrus hub (not loud at all), ordered a Specialized Sirrus X 5.0. Coming in 10 days or so.
–Worked on the back screen door; got it to open and close a little easier.