Try a broker that charges fixed price no matter how many shares. Ameritrade for example. 100 shares or 10,000 shares - you still pay $10. Good for penny stocks of shitty little companies like Citibank or General Motors
td has just changed from 10$ to 5$ for all trades...i hav ean izone acct with them so its always been 5$ for me...I guess less people are trading so they are trying to get em back in the game...I remember paying 120 each way per 1000 shares and 180 for 2000 shares...there werent many day traders then -it want cost effective...Most people held for a few days and points...I liked it better like that.