Here is the full list of all 40 Pickers achievements.
Complete each hidden object game without using the scanner
Complete each hidden object game without using any hints
Maintain the leader position for 7 days
Find all 60 keys
Buy a WWII Helmet
Combine a Suit of Armor with a Sword
Buy a Snow Globe
Buy a Bigfoot Photo
Buy an Accordion
Buy a Vampire Hunting Kit
Explore every scene, hidden object game, and close up in the first 6 location
Buy CJ Baxter's safe
Buy a Motorized Scooter from Hambone Richards
Buy a Sun Clock
Buy a Maffler Man
Buy a group of items at less than 65% of the asking price
Buy a Movie Projector
Restore all items before they are sold
Reduce your store inventory to one page anytime after the 20th day
Reach the Number 1 Rank!
Collect 40 keys to unlock Unlimited Hidden Object Mode
Sell 5 items from Lizzie Davis' crawl space
Unlock all locations in the game
Consult the Expert 20 times
End a day with Patrick Merman in a green mood
Buy a Jukebox
Create 10 new items using the combine tool
End a day with two or more characters liking you (in green)
Bring an owner's mood from angry (red) to happy (green) in one day
Auction 20 items for a profit
Complete 5 unique hidden object scenes
Buy and sell 20 items from the Hot Category
Make a profit 5 days in a row
Complete a hidden object scene in under a minute
Combine two items to create something new
Change a character's mood to green in one transaction
Make a 300% profit in an auction
Restore an item
Buy an item at less than 75% of the asking price
Buy and sell an item from the Hot Category