Dutch product designer Heleen Klopper has brought to us Woolfiller, the answer to our textile quandaries. If you, like me, have had an unfortunate situation with moths deciding to take root in your knitwear cupboard or you've empaled yourself on a passing hook/door handle, you will have unsightly holes in a few jumpers. Woolfiller is like Sugru, but soft. This is not only a thrifty tip but a fun, creative way to champion the Make-do-and-Mend idea by reviving the timeworn skill, felting. Watch the video to see how it works. All you need is a needle, sponge and the wool.