I bought a 1/6 share in a Jodel DR1050 almost 27 years ago. More money for flying hours than if I was sole owner.
I check aviation weather and other weather sites, before flying. I keep a watch on the weather I see as I fly. I often change my plan after take-off. Almost all my flying is in the Scottish Highlands. I have only 3 times diverted to an other airfield.
And every time the aircraft is down for any long maintenance, that is the best spell of weather in the year.