1 and 6
dvds
seeds
minipets
minipet food
chocolates
pearls
glowing eggs
school supplies

2 and 7
soft drinks
bakery
candy
pizza
halloween treats

3 and 8
potions
books
car parts
voodoo dolls
hair dye
balloons
furniture

4 and 9
charms
fast food
trading cards
stamps
female clothing
cd's
toys
appliances
cooking ingredients

0 and 5
contacts
male clothing
computers
instruments
flooring

-This is copied from someone's blog, but I don't remember who