I spent mine on a Brother P-touch 'garden' (ie green....!) labeller. Cost me £5 after the voucher, so bargain. I got it to replace my little p touch labeller as the tapes that uses are not light/waterproof, and inclined to fade over the year.
However, whilst this new labeller produces very nice labels, I just cannot get it to do small ones to fit plant labels, there is always a huge amount of wasted plain tape either side...and I'm thinking this is deliberate so you use the tapes up quicker (my cynical mind.....). I've used the margin facility to get it to print to one side, but it still leaves half a piece of wasted tape. If you try and limit the tape length to 40/50mm, it just says the text is too long to fit on, even at the smallest font size. Arrrrgh! ::)
