If you have talents in this area consider going to the markets and making your own arrangements and corsages. Why be bound by convention. Having a wedding reception any other time than Saturday evening will often save you money. Venue hire will be different prices on different days and if you hold your wedding in the morning or early afternoon entertainers, caterers or reception venues will often offer discounted rates. Lunch receptions can be a fraction of the price.
People usually drink less at a morning or afternoon weddings too.
Choose a reception venue that will let you BYO wine and champagne. A DJ can save you money or consider having one band for both ceremony and reception. Getting all your printing done at once, invitations, place settings, ceremony programs and thank you cards will often get you a discount. Ask photographers before you hire them if the negatives are included in the price. With many they are and this can save you money if you need reprints later on and also ensures they won't be thrown out or lost if the photographer sells up or leaves town.