Maximise Carl's Sex Appeal in San Andreas

This makes the boring job of dating a little bit easier. If you have a full sex appeal bar you will be able to start  dating any girl you find without worrying about her particular tastes such as muscle or fat.

To maximise you must do the following things:

1. Buy your clothes only at Didier Sachs and buy one of every category of item - focus on the Tuxedo. 
2. Get tattooed all over 
3. Get the Cornrow hairstyle or Groove cut. 
4. Build up your muscle and don't get fat
5.  Drive an awesome car such as a Bullet, Super GT or Cheetah etc

You can notice your sex appeal changing if you get out your car, press L1. Then park the car in the garage, run away and when the door is shut press L1 again. Watch the sex appeal bar plummet. 

Alternatively, you can collect all 50 Oysters and this will protect against low sex appeal effects. 

Keep your Weapons after Going to Hospital (Wasted) or Getting Busted

This is one of the coolest things I found out that you can do in San Andreas. It is so simple to do and can save you a fortune especially when you are taking over hoods.

Keeping Weapons After Getting Wasted 

All of your hospital trips will also be free! To do this all you have to do is date Katie Zhan. You don't have to have any progress at all.

She can be found initially at Avispa Country Club in San Fierro just south of your garage. You will need to have at least 75% muscle so get yourself away to the gym to impress her.

Keeping Weapons After Getting Busted 

Again getting busted like wasted will not cost you any money. The process is the same as above. All you have to do this time is date Barbara Schtenvart. She can be found outside El Quebrados police station. Unless you have 100% sex appeal Carl will need to be fat to impress her so get eating (but don't throw up).  

Girlfriends Dating Guide - How to Have Hot Coffee in San Andreas

Girlfriends are in my opinion a pretty crap addition to the game and are very boring. However, you are at one point in the game required to take part in this crap so you might as well do it right and get it over with.

Choosing a Car

Cars have sex appeal and affect the outcome of a date. A safe bet is to go for a sports car such as Alpha, Banshee, Cheetah, Super GT, Flash or Bullet. You should avoid crashing it and if it is damaged go and pay and spray. It is worthwhile storing one of these in a garage near your girlfriends house.    

Sex Appeal

Go to the gym and build up your muscle but not too high. Also keep up with the latest fashions as you unlock new clothes shops.

Also get the Cornrow hair cut which will increase sex appeal by 30%.

Listen

At the start of the date you will be given a hint at what they want to do or where she wants to go. Pay attention to this. Also, in general, avoid cheap fast food places.

What's the Point

For the mission breaking the bank at Caligula's you will need the key card. You can also get some pretty cool cars (the Monster Truck being the best) and some outfits.