I have three bikes and they all get used pretty frequently:
Alberta Clipper - custom Ti road bike. For good weather recreational rides (weekends and holidays)
Silver Jet - steel commuter / gravel bike. For daily commuting and poor weather recreational rides. Also my travel bike since I don't trust baggage handlers with my titanium bike.
Dahon Boardwalk - folding bike. Used for shopping (has a big basket on the back), sometimes commuting (if my regular commuter is down with a mechanical problem), and slow rides with my daughter.
Love them all. They're all well maintained so I can use any of them on any given day without any real preparation.