M.B.
Virgin Mobile has a pay-as-you go plan that I use for both my kids and will be switching to myself (I had an old T-mobile plan that is only $19.99/month that is no longer available, but think the pay-as-you go may be cheaper). They sometimes have the free phones (usually right after Christmas), but the phones are fairly cheap (my son has lost 2) and if you buy a $90 card, you don't have to buy another for a whole year. Otherwise, you have to add at least $20 to the acct every 3 months to keep it active. Just keep an eye on the Target ad as they regularly have the phones and cards on sale.