Things to do in Cambridge when you're dead

[j4]

Anybody have any suggestions for interesting things to do in Cambridge on one's own at a weekend? Preferably things which are cheap, and absorbing enough to take my mind off other things.

Comments

[j4.livejournal.com]

No, there aren't that many wonderful things to do on one's own, which is why -- on finding myself with time to kill but not really in a mood to face sociable company -- I asked for suggestions.

Redecorating is a possibility, though.

And tidying is almost certainly a necessity.