The dowdiest venue can be transformed with a little thought and some spare cash. Decoration varies vastly depending on your budget. Whether you go the whole hog and hire a set designer or use your initiative and spice up the local village hall, the effects can be really stunning. Stretch your budget for flowers by using plenty of foliage and fewer flowers. Herbs that release a scent during an evening with candles and clever lighting can create a great ambience.
Balloons are cheaper than flowers, but can still be an attractive option.
If you are hiring a professional to arrange either balloons or flowers, always ask to see photos of previous work or even a mock up of your chosen idea. Any table decoration should not obscure your guests' view of each other across the table. Expensive urns and pedestals of flowers get lost at the edges of rooms. Try putting them at the corners of the dance floor or on a stage where they will receive more attention. For presentation you will need a table with power for lighting.