we opened our shop 7 weeks ago and it is going well i guess, the thing is to write a list then edit it then write it again then again and again (you get the picture) everytime you think you have nailed it you will think of something else that you need. a lot of people told us not to buy in too many flowers to start off but my fear was that people would walk in and say "omg not much here" so for the first couple of weeks we had to dispose of a lot of waste flowers which is so disheartening. but we soon developed a hard skin and now as we get busier each week we throw less and less away. the thing we always do even on our little 3 quid ready mades we staple our business card to everything, im sure if a customer stood im my shop long enough he would leave with a business card stapled to his ear hahhaha. good luck with it roll up your sleaves and have fun .
steve x