Ordering contaccts online?

When I was in the US, I always ordered my contacts online because of the savings.  I was wondering if anyone had any suggestions on UK websites to order contacts?  Also, has anyone gotten them from Costco?  I was told they were reasonably priced!  Thanks

My contact lenses were never stocked by Costco, but I've used postoptics.co.uk a bunch and been very happy with them. You need a recent prescription anywhere you order from, mind, so you may have to get a contact lense prescription written somewhere first before you order online (I've found postoptics was still significantly cheaper than whatever deals my optician was trying to throw at me).

I just ordered a box of 30 dailies from contactlenses.co.uk - they arrived in three days and were similarly priced to the ones I used to order from 1-800-contacts (who will ship to the UK for $20, plus a £16 customs fee!).

Brilliant ladies!  I just had my visit so I have the prescription-now to see which website is cheaper