I have been selling cards for the last 6 years. In the spring and fall, I go to craft fairs and bazzars..If you use Stampin Up Stamps your not permitted to sell in shops. There is a web site ....
www.littlebit.com that lets you know what each company allows as far as selling handmade stuff..Most will let you have controll of your card sales... SU doesn't permit any online sales of cards made with there products...I believe anyway????
I have alot of fun doing the varios shows and I do make money at it...pm me if you want to know more....