We're due to renew our dogs Rx for heartworm meds and flea and tick preventative. a little background he's been on his current meds since he was about 4 months old. He weighs about 65 lbs and his heartworm costs about $40 for 6 doses and $87 for the flea and tick for 6 doses. He's mostly in our house and yard, we walk him in our neighborhood (cityish suburbs), we rarely take him on hikes and hes occasionally at the beach. we just feel like $180/yr is so much money to spend on flea/tick preventative (i'm fine with the heartworm cost) Does anyone have any other recommendations or ideas on what we can do?