Your idea sounds great! Have you looked for other businesses in your area that are offering the same services? I am trying to start an errand running/ concierge service as well and found that researching the competition is the best place to start. Try to offer something that they dont. Find your niche, with weddings you can do SO much. I have friends and family getting married right now that would pay for this service, wedding planners are overpriced and sometimes too opinionated, you can offer the same services except the bride/groom can choose what they want you to help with and what they would rather do on their own. I can help you come up with ideas if you want....
email me: aroseservices@gmail.com

errand service...
I just thought I would add my experience in this. Years ago, I also `briefly` started a errand service. Got my logo, joined the chamber, made flyer`s, etc, etc. I lived near a senior community that was really my target market. Not only did I think I could help them, but I knew I`d `love` to help them. The problem was really making a business out of this. First, because I knew I was targeting a market that needed my service, but,.. I also knew that they couldn`t really afford to spend much on the service. I think I finally realized that is was more a service that I would love to do, but not a service that I could really make money at, so I ended it. Saying that, I do believe it`s a great service. But I do believe you need to do this service in an area that has money to pay for such a luxury.
The bridal industry may be good, for the ones that can afford it, because doing all those things that they need done, could really be helpful.
But, I have to say, after having a Daughter that was just recently married, a Bridal coordinator, is big business, and someone that knows what they`re doing has a very good business to offer to these brides! We couldn`t` have done without the one we had!
What the heck do you mean Craig?
But I also wanted to add, that after I ended my Errand Service Business, the calls started to come in. So,.....I never knew what it could have been.