I had my share of memories at Candlestick and many of them were not too pleasant. However, at SBC Park, the weather is actually pleasant at times and the view to the bay is gorgeous. I'm not one to invest too much on seats, but even at the cheap seats on top, I had little problems seeing and actually enjoyed the game. The parking can be a little hectic, so I'd advise public commuting. But other than that, go buy some curly fries and whip out your Giants hat, because you'll enjoy your stay there.
Ever since they placed this facility downtown after leaving Golden Gate Park, I wonder how many people really go to it. Making up about two floors, the general exhibit displays aquatic life and every few months cycle their special exhibit from chocolate to... ANTS. Although the museum itself isn't exactly small, you could probably finish this thoroughly in a couple of hours, or a lunch break if you've been there before. The admission is somewhat pricey (around $7) for what you get and I wouldn't recommend going more than once if you've been there before, unless there is a special exhibit being shown there. This can be entertaining, but there is better exhibits to be had in the city.
Frankly, if it wasn't for the fact that one of my friends bought a custom computer for me from there, I wouldn't haven't even known it was there, despite how many times I pass by the neighborhood there. Do not expect a Fry's Electronics as their selection is just average and their space itself is probably no bigger than a cluster of office size rooms. But despite this, if you want a good computer that could keep up with today's needs for the right price, the store has plenty of options that can allow you to custom your dream machine as you see fit. Systems can range from a few hundred to a couple thousand, so it's always best to ask the people there to assist on what you want to do with it. They have a little "guide" there that can tell you what supplies they have, but I recommend that you look at their website to get an idea of what they have before going though.
If you live in the Bay Area, you probably have noticed that the number of bowling alleys around have been shrinking. In fact, if you live right in San Francisco, most probably could only think of two or three at most. But if you take a good fifteen minute drive out of the city and right smack in the middle of some residential area Classic Bowling. Although outside it could use a good clean up, they have a good 50 + alleys available with some rather good score system computers hooked up. Prices are average - $4.00 to $7.00 range, but can be much cheaper if you join a league, where you pay a fee each time the league is in session and a much smaller one during offtime. Also available at the bowling alley is a bar that can be used for parties, a small arcade, and a little eatery where I definitely recommend the delicious calamari.