Homework

i've lots of homework this weekend... planned to go swimming with my friends but couldn't make it 'cause i'd not finished my work... my school's going to have an entrepreneur's day + open day on 15.07.2004... hey, my friends and i've to participate in a chemistry quiz on that day! yup... another quiz... *sigh we'll be very busy on that day... i really don't have the idea on what to sell... could anyone please give me some suggestions? thanks...