When buying flowers from a flower shop, take your old vase with you and save 50 cents to $3.00, depending on vase size. If you're like me, you don't have enough storage space to store those you've collected over time anyway.
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Make your own flower arrangements and delivery personally. You will save a lot of money and delivering it will give it a personal touch.
I had some house plants I had to get rid off so I took pictures of them to the local florist. They took some of the plants and gave me fresh cut flowers in exchange.