On my first rs day, I bought shears in the general store for like 1-2 gp, 2 minutes later someone bought it from me for 28 gp, I was very happy with the 25 gp profit :')
Tried the warrior guild today for the first time. Used 1100 ticks to get my first rune defender, had 200 ticks left. =D So i used up my ticks, and got another rune defender at 35 tickets left ;o, and when i had 15 ticks left, i got a third one. Guess i'm lucky ^_^