Another idea to save yourself some money.

Whilst your at the trade show looking for new suppliers, don't forget to ask
if they will ship direct to your customers. This is commonly known as
dropshipping, where a supplier will take an order from you and process
the order by shipping direct to your customers address. So basically you
pay your supplier £10 for an item you've just sold to your customer for
£21, that is £11 clear profit just for placing the order, not bad eh!!

Look here if your interested in dropshipping

Not all wholesale suppliers advertise this service, but do offer it if
you simply ask.

This can't be, I hear you say! well its true, loads of really big retail
outlets have their supplier ship packages direct to their customers,
because it saves them money. They don't have to store these items meaning
they dont need the storage space which costs money in itself. The biggest
saving to you is pure and simple, you dont pay your supplier until your
customer has paid you first. Of course this only works when you're selling
online but I'm sure you understand that anyway.

Give it a go after all, if you don't ask you don't get.

Goodluck