got a new buggy board

got a new buggy board the other day, & i did a trail run up school with my 4 month year old & 4 year old, took me about 20mins to walk bout a mile but i was knackered but it was a lovely morning & shouldve took a drink cos i was very thirsty by the time i got there, suffering this morning as i got a sore throat. The whole experience wasnt too bad but im sure i havent got it fixed properly & my son keeps knocking his head inbetween the handle bars & because my other son is so small still it keeps flipping back, i know i can get buggy weights but thats more money again, i wonder if i should just put a couple of tins of baked beans in the basket below the buggy! i think i should try & save petrol by doing this in the summer & help me get rid of my mummy tummy!! will probably be on sale on ebay soon no doubt!!