If you are on a tight budget the two biggest places to save some cash are the venue and the food. research some locations that have different packages to where you can scale back the cost. Also consider having your reception at someones home or backyard. Consider having your wedding in the late afternoon or late evening so skip out on meal times. Have appetizers/finger foods and cake rather then a full meal. And lastly don’t be afraid to try to bargain with your vendors for better rates.