So far I've learned how to sew on buttons and hem pants, easy stuff that's good to know. But right now I'm in a jam; I need the sleeves on my jacket shortened by about .75", and all local tailors and seamstresses are full-booked (national day coming up in a few days). my best shot seems to just do it myself. FWIW I do have no value/useless jackets to practise on, so no worries there. Could anyone provide useful websites/tutorials/video lessons on sleeve alteration like that? Thank you.