Not sure about the routine thing, as we don't really do that, but here are some play ideas:
If he loves kicking his feet, give him something to kick against that makes a noise - I use the alumium (sp?) tray you get from the back of family size pies.
Tie some ribbons to a coathanger and pass that back and forward over his face.
Blow bubbles! and let him watch (just use dishwashing liquid)
He will love you touching him and touching you. Blow raspberries on his tummy and feet. Lie on the floor and let him roll and climb on you (I know he will still be little, but my DS loved starting to clamber on me at around 3 months).
Play songs with his body like row, row, row your boat with him sitting on you and rowing his arms.
Play aeroplane with him lying on your calves and you roll backwards (this is great for your tummy muscles too!
Play is also just about new experiences -- I take DS out into the garden and let him look at leaves. When I make a cup of tea, I give him the box of tea to hold and look at. He's now up to grabbing the tea bag out of the box and dropping it (with help) into my cup!

(Naturally, I keep him well away from the hot water)
Give him things to smell -- DS loves me holding him up by the pantry and letting him smell various things in there.
Put on the radio, ipod, etc and dance around the house with him.
Get a blow up ball (like a Swiss ball) and roll him on the top of it.
Hold him up to a mirror with you and make faces into it.
That's all I can think of for now!