This question is kind of like how long is a piece of string, but i will try and help,
Envelope depends is you are sending photos and how pic they are, i use A5 usaully
make sure you send a SASE inside the same size too, or if sending overseas include IRC
Its up to you wheter you want to send your own Photos/dvd/cd/posters sleeves etc.. for them to sign, and just politely ask at the end of your letter is they wouldnt mind signing the enclosed items for you,
if you dont send anything, just ask them politely to send you there autograph, most people have photos, which they use to send out signed, but most people like to send there own so they dont get the same back as everyone else,
To get it read, mmm! i usaully use nice writing paper, either bright colours, sometimes i add stickers do doodles, just tell them a bit about why you like them and also you could include a little something about you,
its as easy as that and then just wait... and wait... and wait.... then bingo!
PS this is in the wrong forum, should be in collecting help
