Different threads for different circumstances, but I'd say you'd want the same thread that's in the bobbin else they'll look different. Perhaps ditch the thread in the bobbin and put in the new thread.
If you haven't wound a bobbin:
[ame="http://www.youtube.com/watch?v=sbTPX14KQ_k&feature=player_embedded"]YouTube-
Crafty Bitches Bobbins[/ame]
I mostly use polyester thread. Sainsbury's have a decent ish selection actually.
Different threads for different circumstances, but I'd say you'd want the same thread that's in the bobbin else they'll look different. Perhaps ditch the thread in the bobbin and put in the new thread.
If you haven't wound a bobbin:
[ame="http://www.youtube.com/watch?v=sbTPX14KQ_k&feature=player_embedded"]YouTube-
Crafty Bitches Bobbins[/ame]
I mostly use polyester thread. Sainsbury's have a decent ish selection actually.