what are Facebook advertising tips that I can use?

[Jake]

Be sure to fully utilize the demographic settings to maximize the return on your advertising dollars and increase the ctr, which lowers ad costs. Interest settings help too, but they are not the same as search PPC keywords. The estimated matches shows on the far right of the ad setup page. Geographical targeting is a must for any physical store.

Change ads, particularly the images regularly, ad fatigue and ctr drops happens quickly in Facebook, watch the average exposure stat (I don't recall their term).

Sending ads to Facebook Pages should cost less than external links. Those promoting sweepstakes for the purpose of collecting likes or opt-ins can get incredibly high CTRs, which can drop click costs to under 10 cents.