There's nothing wrong with buying flowers from the supermarket. There's often a wide choice, they're guaranteed to last a while and usually come with plant food, which is a bonus BUT their biggest let down is the cellophane wrapping and those ugly giant stickers normally plastered all over them.
If you were giving these flowers to someone as a small gift re-wrapping them can definitely give them a bit more wow factor, not to mention they add that personal touch.
Start by removing the cellophane wrapping and any elastic bands that were keeping them together. Rearrange them into one bunch and once you're happy with the arrangement reuse one of the elastic bands to keep them in place.
Wrap the flowers in your chosen paper at a diagonal. I've chosen brown parcel paper as I always have some to hand but you could even use tissue paper. On this occasion I've held the paper in place with some coloured twine but you can use any ribbon, string or even lace that you may have lying around the house.
Overall I think the look is quick and easy to create yet effective and makes your gift a little bit special. You could even go one step further and hand print a design onto the paper.