Macau airport to Venetian

Hi,

We will reach at macao on 12th apr at 11am and will check in towns well hotel at 2pm, during this period, we plan to visit taipa or venetian first, is there any free shuttle bus service to both place and how long does it take? However, we hope to keep our luggage at the place we plan to visit, does they provided luggage keeping service because we don't want to carry along the luggage. Or is there any suggestion where can we go to visit first before we go to check in? Your help is highly appreciated. Thanks in advance~