i intended to post earlier, but was busy all day. Despite my post being old, i'll post it anyway.
i'm more of a vodka and gin man, but i mix a few tequila drinks every now and then. Here's a couple of mine. Measurements might be a bit off since i haven't made one in a while. i mix by eye, so as long as you have an idea how much to add of each ingredient, you're good.
Classic Margarita:
2 ounces of tequila
1 1/3 ounce of Cointreau
2/3 ounce of lime juice
Brave Bull:
1 1/4 ounces of tequila
3/4 ounce of Kahlua
Acapulco:
1 1/2 ounces of tequila
1/2 ounce of Cointreau
1/2 ounce of rum
splash of lime juice & sour mix
i know someone else posted it but above is how i make them. If you wanna make frozen versions of those, add more sour mix/margarita mix and mix with crushed ice. i usually just pour them over ice myself; crushing ice is too much trouble for when i just want a drink.
i recommend Cointreau, which is one of the better triple secs available. Once you've tasted it, you won't want to go back to anything with "triple sec" emblazened on the label. It's expensive, but worth it, and will last a while used in moderation. Aside from stocking Cointreau (or if you're cheap, triple sec), i also recommend stocking lime juice (Rose's is usually it), and a sour mix. You can use a margarita mix, but i prefer a sour mix. And the free ones you get with some tequilas taste like arse if you don't doctor them up (Cointreau and lime juice works here). When i'm mixing drinks, Cointreau, lime juice, or sour mix is an ingredient 90% of the time; your mileage may vary. You can use fresh limes as well, but for the sake of convenience i use Rose's, which is also presweetened a bit.