Well done for losing some weight!
I know you don't want to buy clothes (very sensible, save the money and have a big splurge when you are svelte) but how about a new hairstyle/new colour, some new makeup, jewellery (I have a bit of a Wallis thing going on at the moment - they have some gorgeous jewellery in there and really reasonably priced).
Go treat yourself - you can de-frump without buying clothes. Gawd, I sound like those bloody awful women - Trinny and Susanna. Go shop girl