I started last night, and I'm up to day 14. I chose a Sim with the traits: Ambitious (which gives an increase in happiness points from wishes), Artistic, Bookworm, and Green Thumb, as she's going to make her living Gardening, Painting and Writing, and Loves the Outdoors, so she gets that mood boost while gardening, collecting, fishing, etc. I built her a house at 477 Sunnyside Blvd, which gives her the Beautiful Vista moodlet as long as she's outside or in a room with windows. It's also steps away from a great seed collecting place, an insect collecting place, and fishing. There are also rocks nearby, and the very best place to catch rare insects is just down the road a bit.
By the end of week 1, she was harvesting great veggies, was gardening level 4, and had a score of 26,345, made up of 7540 lifetime happiness points, 2900 in cash, and 15905 in lot and furnishings.
By the end of week 2, she's almost gardening level 10 (with the want to acheive that landmark locked at +8500 points!), and has 6/8 perfect plants growing in her garden. She's got 22,300 lifetime happiness points (spent 20,000 on the Super Green Thumb), has a whopping $17 in cash (sounds like *my* bank account!) and 20,281 in lot and furnishings for a total score so far of 42,598.
And 13 weeks still to go...