I think it boils down to what you enjoy doing in the game. I really do. The ones you find hard to do @invisiblgirl are two I can get done pretty quickly .. collector and outdoor enthusiast and I still enjoy doing them. You are right though you need nearly a week in Granite Falls and now you have to time it during Summer for the most part because it's the only time you can get all the plants for sure. I get the collection by completing insects or on a scientist.. so it's usually insects. Next time I'm combining it with fishing because supposedly all the fish that came in different packs count now (Hallelujah!). I'm actually planning another trip to GF in my current play through.. glad I read this thread, good reminder because it's the end of Spring in my current save.