I've designed some business cards, I'm in England and cannot find where to buy any card heavier than 400gsm (ebay only 1 available at 400 gsm) so pretty stuck here. What weight gsm does everyone think for a perfect business card? I have some 300gsm, and it's not good enough really, too floppy and don't look professional, I'm limited to what I can put through my printer but would've thought it could handle 500gsm. (Can always go little higher than printers specs I've found). I should probably have them printed, but can't justify the costs because it's the construction game and 99% really don't take the impression of the card too much, it's done by word of mouth, references and previous jobs. Currently building my website so they'll have a little look at that and shows some nice previous work.