Jacking off is a perfect time to experiment. Try new grips or stroke techniques. Take the opportunity this weekend to get naked, get your cock good and hard, and play outside the box (no pun intended, str8 folks).
If you normally wear briefs, or any type of underwear, go commando; freeball your way through the weekend.
Maybe head outdoors. Go somewhere you've never whacked off before. You'll be surprised at how erotic it can be; how much harder you get, how much stronger the orgasm will be.
Maybe take a trip to your local adult store and get a new kind of toy for your jacking pleasure. Buy a cock ring or two. Or a masturbation sleeve and some new lube. Then come home and spend the entire weekend naked, hard, and stroking.
Just shake things up a bit for some fun and added spice into your session, and have great bonerrific, jizz-spurting weekend.