Most Home Depot stores have Sawyer 24 oz permethrin clothing treatment spray on sale for $6.20 (not including local tax). This stuff is awesome for hunters and woodsman or even for treating your shoes that you use in the yard to keep ticks and other biting\disease-carrying insects off you. As a hunter, i swear by this stuff. You pretreat your hunting clothes and your shoes\boots with it and then let it completely dry and basically it keeps ticks from climbing across those articles of clothing for a few weeks. It usually lasts through 5 or 6 washes cycles before needing a re-treatment. This stuff is usually between $14 to $18 for a 12 oz bottle and the 24 oz (if you can even find it) is usually upwards of $23 when you add in shipping. Grab some while you can!
Some Home Depots have it in a clearance section but most just have it on the shelf in the regular bug spray and insect repellent section with a clearance sticker beneath it. Price check it in one of those price check stations in another aisle to make sure your store has it on clearance. All of the stores in Massachusetts have it on clearance.
They don't list the product on their website anymore, but this is the exact product from another seller: