Having a bit of a confidence crisis... Does anyone leave their 18 month olds to just play with their toys whilst doing housework etc in the morning? We live in a tiny flat and have twins so it gets messy / dirty so quickly. I can't do it evenings as they don't sleep well and can't leave it until the weekend as we wouldn't be able to move for toys and debris!! I just feel so guilty leaving them for a few hours every morning just playing and looking at books whilst I tidy / clean / prepare food etc. Is this selfish / not good for them? Thanks!