Spoiler request... does the computer you can buy at RadioShack actually do anything? Thanks!
Same question for handbags. I see that buying a watch can add +1 charm but i don't get handbags?!
Computer does 2 things.
The cock roulette game allows you to restore masculinity if you win, or tank it if you lose.
Buying porn from the card shop seems to be the only way to masturbate as a guy.
Bags allow for up to a 15% xp bonus in a timeslot, as well as manually changing clothes once a day (it's supposed to be per timeslot, but seems to only work once/day).
Colour matching is relatively obvious, if it says "white" and your outfit is white, you get the 5%.
Style is trickier, because you can't see the clothes' tag. if you hit ` and type in $outfit, you can check it there, but it's annoying. If the bag says "cute" and your outfit is tagged cute, you get a different 5%.
Location is just ... an office bag gives you 5% at the office, etc.
If you have a style or colour match, you get a +1 charm buff.
Now there's an issue here. The game doesn't switch bags for you (and there seems to be no way to do it manually), so it only uses the last bag you bought. I expect this will be fixed somehow, but as of right now just try to match all your outfits to one bag.
This is especially tricky since an office or gym outfit's bonus only apply once a week.